schroff-calmark_pcb-card-guide

www.calmark.com • 800-854-7086

Overview of Calmark

Conduction Cooling Products

Card-Lok Products

Channel-Lok Products

Retainers

Card Guides

Extractors, Nylon

Extractors, Metal

References

ABLE OF

ONTENTS

Overview ..................................................................Page 2, 3

Product Selection Guide .........................................Page 4

Requirements .............................................................Page 5

Series 223 & 224 ...............................................Page 10, 11

Series 225 ............................................................Page 12, 13

Series E225 .........................................................Page 14, 15

Series L225 .........................................................Page 16, 17

Series 226 ............................................................Page 18, 19

Series 230 ............................................................Page 20, 21

Series 231 ............................................................Page 22, 23

Series 235 ...........................................................Page 24, 25

Series 236 ...........................................................Page 26, 27

Series 240 ............................................................Page 28, 29

Series 245 ............................................................Page 30, 31

Series 250 ...........................................................Page 32, 33

Series 255 ............................................................Page 34, 35

Series 260 ...........................................................Page 36, 37

Series L260 .........................................................Page 38, 39

Series LE260 .......................................................Page 40, 41

Series 261 ...........................................................Page 42, 43

Series 263 ...........................................................Page 44, 45

Series 264 ...........................................................Page 46, 47

Series 265 ...........................................................Page 48, 49

Series 266 ...........................................................Page 50, 51

Series 267 ............................................................Page 52, 53

Series 280 ...........................................................Page 54, 55

Series 281 ...........................................................Page 56, 57

Conduction Cooled Assemblies ......................Page 6, 7

Conduction Cooled Keying ...............................Page 8, 9

Series 227 & 228 ...............................................Page 58, 59

Series 125/126 & 165/166 ....................................Page 60

Series NW125/NW126 & NW165/NW166........Page 61

Series 115-287 .........................................................Page 62

Series 120 & C120 ....................................................Page 63

Series 107 ............................................................Page 66, 67

Series 109 ...................................................................Page 68

Series 101 to 108 ..............................................Page 64, 65

Technical Applications ..........................................Page 69

Clamping Force Data - Card-Loks ......................Page 70

Thermal Resistance - Card-Loks .........................Page 71

Mounting & Installation for Card-Loks .............Page 72

Theoretical Discussion of Card-Loks

and Inserter Extractors ..................................Page 73

Material & Finishes .................................................Page 74

Technical Reference Data .............................Page 75-83

DSCC Cross Reference ...........................................Page 84

Glossary .....................................................................Page 85

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•

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LE260

L260

L225

E225

Card-Lok

Product 3 or

Actuation Profile Width (nominal) x Profile Height

Approximate

Length

(min)

Recommended DSCC DSCC

CID

Series

5 pc.

Relaxed Height (max)

Expanded

Clamping

Torque Setting

(min)

Force

N(lbs) N-cm (in-lbs)

223

Screw

5.72 (.225) x 6.86 (.270)

8.26 (.325)

71.12 (2.80)

tbd

limited

224

Screw

5.33 (.210) x 7.24 (.285)

8.64 (.340)

71.12 (2.80)

tbd

limited

225

Screw

5.72 (.225) x 6.86 (.270)

8.26 (.325)

54.61 (2.15)

489 (110)

68 (6)

84103

Screw

5.72 (.225) x 6.86 (.270)

8.26 (.325)

71.12 (2.80)

489 (110)

Lever

5.72 (.225) x 6.86 (.270)

8.26 (.325)

54.61 (2.15)

533 (120)

N/A

226

Screw

5.72 (.225) x 6.86 (.270)

8.26 (.325)

121.92 (4.80)

800 (180)

68 (6)

89064

59789

230

Screw

5.59 (.220) x 5.72 (.225)

6.99 (.275)

54.61 (2.15)

489 (110)

68 (6)

84103

59590

231

Screw

5.59 (.220) x 5.72 (.225)

6.99 (.275)

121.92 (4.80)

800 (180)

68 (6)

89064 59789

235

Screw

5.84 (.230) x 7.32 (.288)

8.64 (.340)

71.12 (2.80)

445 (100)

68 (6)

236

Screw

5.84 (.230) x 7.32 (.288)

8.64 (.340)

147.32 (5.80)

800 (180)

68 (6)

240

Screw

6.10 (.240) x 4.57 (.180)

5.59 (.220)

54.61 (2.15)

489 (110)

68 (6)

84103 59590

245

Screw

6.60 (.260) x 6.86 (.270)

8.26 (.325)

54.61 (2.15)

622 (140)

113 (10)

59590

250

Screw

9.53 (.375) x 9.78 (.385)

11.94 (.470)

63.50 (2.50)

1111 (250)

227 (20)

59590

255

Screw

12.70 (.500) x 11.68 (.460)

15.24 (.600)

54.61 (2.15)

1778 (400)

351 (31)

59590

260

Screw

6.35 (.250) x 6.26 (.270)

8.26 (.325)

54.61 (2.15)

1778 (400)

68 (6)

89024

261

Screw

6.35 (.250) x 6.26 (.270)

8.26 (.325)

54.61 (2.15)

667 (150)

68 (6)

Lever

6.35 (.250) x 6.26 (.270)

8.26 (.325)

54.61 (2.15)

556 (125)

N/A

Lever

6.35 (.250) x 6.26 (.270)

8.26 (.325)

54.61 (2.15)

556 (125)

N/A

59789

263

Screw

6.35 (.250) x 7.44 (.293)

8.89 (.350)

54.61 (2.15)

1778 (400)

68 (6)

264

Screw

6.35 (.250) x 7.44 (.293)

8.89 (.350)

54.61 (2.15)

667 (150)

68 (6)

59789

265

Screw

5.72 (.225) x 5.84 (.230)

7.37 (.290)

54.61 (2.15)

1556 (350)

68 (6)

266

Screw

5.72 (.225) x 5.84 (.230)

7.37 (.290)

54.61 (2.15)

600 (135)

68 (6)

267

Screw

6.35 (.250) x 5.00 (.197)

5.99 (.236)

54.61 (2.15)

1556 (350)

68 (6)

280

Screw

9.27 (.365) x 9.65 (.380)

11.68 (.460)

60.96 (2.40)

3334 (750)

227 (20)

59789

281

Screw

9.27 (.365) x 9.65 (.380)

11.68 (.460)

60.96 (2.40)

1245 (280)

227 (20)

Channel-Lok

Product 3 or Actuation Width x Height (max)

Board Thickness

Length

Approximate Recommended

Torque Setting

N-cm (in-lbs)

Series

5 pc.

(min)

Clamping

Force

N (lbs)

227

Screw

12.57 (.495) to 8.89 (.350)

1.14 (.045) to 2.62 (.103)

76.20 (3.00)

489 (110)

68 (6)

228

Screw

12.57 (.495) to 8.89 (.350)

1.14 (.045) to 2.62 (.103)

101.6 (4.00)

801 (180)

68 (6)

NW165/NW166

NW125/NW126

Retainers & Card Guides

Product Series Material

Conductive

Application Board Thickness

Length

(min)

UL rating

125/126

Yes

Sheet Metal 1.6 (.063) & 2.4 (.094)

31.75 (1.25) to 311.15 (12.25)

N/A

165/166

BeCu

Yes

Sheet Metal 1.6 (.063) & 2.4 (.094)

31.75 (1.25) to 311.15 (12.25)

Yes

Cold Wall

N/A

31.75 (1.25) to 311.15 (12.25)

BeCu

Yes

Cold Wall

N/A

31.75 (1.25) to 311.15 (12.25)

N/A

120

Nylon

Sheet Metal 1.6 (.063) & 2.4 (.094)

101.60(4.00),152.40(6.00),177.8(7.00),215.90(8.50),241.30(9.50)

V-2 (V-0 available)

Polycarbonate Yes

Sheet Metal 1.6 (.063) & 2.4 (.094)

101.60(4.00),152.40(6.00),177.8(7.00),215.90(8.50),241.30(9.50)

V-2 (V-0 available)

Product Material Function

Mechanical Board Thickness

Series

Advantage

1.6 (.063), 2.4 (.094) &

3.2 (.125)

107-35 Al

I & E

5.5:1

1.6 (.063), 2.4 (.094) &

3.2 (.125)

107-50 Al

I & E

4.5:1

1.6 (.063), 2.4 (.094) &

3.2 (.125)

107-51 Al

I & E

3.3:1

1.6 (.063), 2.4 (.094) &

3.2 (.125)

107-55 Al

I & E

8.0:1

1.6 (.063), 2.4 (.094) &

3.2 (.125)

107-73 Al

I, E & L

4.2:1

1.6 (.063), 2.4 (.094) &

3.2 (.125)

107-75 Al

I, E & L

7.0:1

1.6 (.063), 2.4 (.094) &

3.2 (.125)

109

Al or CR

4.5:1

Nylon Extractors & Inserter-Extractors

Metal Extractors & Inserter-Extractors

Product Material

Function

Mechanical Board Thickness UL Rating

Series

Advantage

1.6 (.063) &

107

Glass-filled Nylon

I & E

4.5:1

V-0

2.4 (.094)

107-10

Glass-filled Nylon

I & E

3.3:1

V-0

1.6 (.063) &

V-2

107-20

Glass-filled Nylon

I, E & L

4.5:1

2.4 (.094)

(V-0 available)

107-30

Glass-filled Nylon

I & E

5.5:1

1.6 (.063)

V-0

1.6 (.063) &

107-40-3

Glass-filled Nylon

I & E

4.5:1

2.4 to 3.2 (.094 to .125) V-0
1.6 (.063),

V-0 (Inserter-

107-70

Glass-filled Nylon
Latch - Nylon

I, E & L

4.5:1

2.4 (0.94) &

Extractor)

3.2 (.125)

V-2 (Latch)

1-Other assembly lengths available upon request 2-Clamping forces based on Chemical Film Option – Other finishes and options will yield different results

3-101 available in 1.6 (.063) only 4-Function: E=Extract I=Insert L=Latch or Lock 5-Units are metic (inch)

Product Selection Guide

59789

59590

68 (6)

N/A

C120

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Finish & Plating

RoHS - Restriction of Hazardous Substances

DFARS 252.225-7014 & Alt 1. Preference for Domestic Specialty Metals Clause

DSCC - Defense Supply Center - Columbus

Design Flexibility – Common Modifications

Warranty

The Calmark product line offers a wide variety of standard finishes for products. Most of the components are made of aluminum or stainless steel.

The standard finishes are:

For Aluminum, standard finishes include:

For BeCu, standard finishes include:

• Chemical Film per Mil-DTL-5541 Type 1 (non-RoHS) Class 1A or 3, Gold

• Tin Plate per Mil-T-10727 Type I, Bright

• Chemical Film per Mil-DTL-5541 Class 3, Type II, Clear

• Nickel Plate per QQ-N-290 Class I, Grade F

• Black Anodize per Mil-A-8625 Type II, Class 2

• Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

• Hard Black Anodize per Mil-A-8625 Type III, Class 2

• Zinc Plate per ASTM-B633 Type III (Clear), SC1

• Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

For Nylon card guides and extractors:

For Stainless steel, standard finish is:

• Color coding is available for Natural/White card guides and extractors

• Passivation per AMS 2700

• Standard colors are BLK and Natural; other colors avalailable upon
request.

The Calmark product line offers several product configurations to meet the requirements of the European Directive 2002/95/EC for Restriction of Hazardous

Substances. This European Directive affects primarily the aluminum components that are finished with a gold chemical film process. This process uses a

hexavalent chromium (Cr+6). An option for clear chemical film process using a trivalent chromium (Cr+3) has been added for those needing to meet this

requirement. Contact one of our applications engineers for more details regarding the RoHS requirements of specific items.

Calmark products can support the needs of Prime Contractors and Subcontractors supplying product to the DOD, particularly the Preference for Domestic

Specialty Metals Clause. This clause is applicable to DOD Prime Contract Awards exceeding the simplified acquistion threshold, of products, components and

assemblies for use in Aircraft, Missile and Space Systems, Ships, Tank and Automotive Items, Weapon Systems or Ammunition. For the Calmark product line,

this affects the hardware, components and materials that are made of stainless steel. At the time of this writing, all COTS items which include all part numbers

configurable in this catalog are exempt from the Preference for Domestic Specialty Metals Clause for Prime Contract Awards after October 25, 2007. Fastener

DNAD waivers are also available for Prime Contract Awards between April 10, 2007, and July 26, 2008. There are many other exemptions available.

We recognize that each of our customers has a different method for handling this requirement, so we have implemented a process that we feel will handle the

great majority of our customers’ requirements. Because at this time, the Class Deviations are not retro-active, in order to best respond to your needs, we do

require that all quotations and purchase orders note this requirement along with the Prime Contract Number. We do charge for a signed DFARS 252.225-7014

& Alt 1. Statement Sheet that must go along with your order. For those customers that can use the COTS exemption, we offer free of charge documents that

you can download from our website. The Product Sheets will indicate from the Statement Sheet which statement applies for your product of interest. If these

documents meet your needs, please indicate this in your quotation or P.O. Of course, for those customers that need a signed Statement Sheet, we can also

accomodate this requirement at an additional fee.

Calmark also provides as a standard offering products that meet many of the specifications defined by Defense Supply Center – Columbus.

Calmark has incorporated the DSCC part numbers as a standard product offering to get the proper specification requirements by the addition of a “CM-”

prefix to the DSCC part configuration for our internal part number system. The DSCC part number will be part of the description.

All part numbers defined in the DSCC specifications are considered COTS items for Calmark.

The Calmark product line offers an extremely broad range of configurations, not all of which are detailed in this catalog. Calmark is set up to handle these

requests. Contact one of our Applications Engineers and a unique part number will be assigned for you for a product that meets your specification. Some of

the modifications available include:

• 7 and 9 or more wedge segments

• Different lever lengths than those offered in the catalog

• Lengths outside of our standard catalog product offering

• Different hardware than standard offering including screw threads, thread-

locking mechanism and bonded washers

• Relocation or addition of mounting holes

• Tapped holes other than the standard catalog product offering

• Secured wedges

• Screw head activation different from M2.5 and 3/32 hex socket

• Ejection feature simillar to E225 may be implemented on other

• Specific individual wedge dimensions different from the

catalog offering

Series profiles

• Modification of extractors

• Replacement of split washers with Belleville washers

• Hot stamp of plastic parts to your requirements

• Materials with different alloys from the catalog offering

• Silkscreen per your requirements

• Add chamfers

• Different finish from those offered in the catalog

Our applications engineers can help you specify a cost effective design that will work for your application. The catalog offers the configurations that

meet most applications, but if you don’t see what you’re looking for in the catalog, please call us. Odds are, we’ve already done something very similar.

Pentair Technical Products’ Warranty is guaranteed from defects for 1 (one) year after shipment.

Requirements

• Chemical Film per Mil-DTL-5541 Class 3, Type I, Gold for Shafted Products

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•

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Custom Conduction Cooled Frames

Conduction Cooled Assemblies consist of

a conduction cooled frame, backing plate

or backing strips, extractors and wedge

clamps. They are designed for circuit boards

requiring cooling in severe environments

where convection cooling is not practical.

The assembly also provides needed

structural support of the plug-in module

during extremely high shock and vibration

applications. Optional configuration for

compliance to IEEE 1101.2 and VITA 30.1.
Calmark offers a standard design that

takes the guesswork out of the perimeter

of the assembly. The component area can

be customized to match your board and

application.

Conduction Cooled Assemblies

FEATURES

•

Conduction frames available in 3U

or 6U, VME or cPCI based designs

•

Can accommodate ccPMC or XMCs

•

Extractors provide ample force to

disengage board connectors

•

Available in Black Anodize, Chem

film or Electroless Nickel plating for

excellent corrosion resistance

•

6061-T651 aluminum provides

high thermal conductivity as well as

lightweight support

•

Locking Helicoils secure board

fasteners in extreme vibration

environments

•

High performance five piece wedge

clamp provides high clamping force

with even pressure distribution for

low thermal resistance

•

Frame and backing plate are each

machined from a solid piece to

assure high heat transfer and

structural integrity

•

Custom silkscreen available

ACCESSORY

•

Code Keys prevent VME64x

Conduction Cooled Assemblies

from inadvertent insertion into the

wrong slot

Coding Keys

Free Connector (P)

Conduction Cooled Frame

Wedge Clamp

Extractor

Backing Plate

Wedge Clamp

Plug-in

Module

89090687

3U and 6U designs are avalable with compliance to IEEE 1101.2 and VITA 30.1 specifications.

Conduction Cooled PMC modules can be incorporated per VITA 20.

www.calmark.com • 800-854-7086

Part Number Code

Conduction Cooled Assemblies

CC B 3 V XXX G B16 L

3U ______________________________________

6U ______________________________________

VME (1101.2) ____________________________________

cPCI (VITA 30.1) ___________________________________

Center rib location (mm.m) _______________________________

XXX

PMC for ccPMC mounting _______________________________

PMC

Gold Chemical Film Finish _________________________________________

or choose from Finish Table
Backing Thermal strip 1.6mm _________________________________________

B16

Backing Thermal strip 2.4mm _________________________________________

B24

Backing Plate 1.6mm ______________________________________________

P16

Backing Plate 2.4mm ______________________________________________

P24

Latching Extractor handle ____________________________________________________

no latching ________________________________________________________

[blank]

Part Number Code Example:

CCB3VPMCBP16L
Conduction Cooled Assembly 3U VME designed with ccPMC mounting, black

anodized, with 1.6mm backing plate and latching extractors

FINISH TABLE

Code

Letter

Finish

“G”

Gold Chemical Film per Mil-DTL-5541 Class 1A, Type 1

“CC”

Clear Chemical Film per Mil-DTL-5541 Class 1A, Type II

“B”

Black Anodize per Mil-A-8625 Type II, Class 2

“N”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

Conduction Cooled Assemblies

KEEPOUT

FOR WEDGELOK

VARIABLE RIB "XXX"

BOARD

M2.5x0.45

CCA FRAME

0 .000

2.92 [.115]
5.38 [.212]

14.61 [.575]

44.45 [1.750]

88.90 [3.500]

133.35 [5.250]

177.80 [7.000]

216.87 [8.538]

222.25 [8.750]

225.17 [8.865]

0.00

4.19 [.165

]

38.86 [1.530]

76.96 [3.030]

115.06 [4.530]

133.60 [5.260]

136.14 [5.360]

139.83 [5.505]

142.37 [5.605]

3.56 [.140

]

6.48 [.255]

233.35 [9.187]

BOARD DIMENSION

160.00 [6.299]

BOARD DIMENSIONS

.236 [6.00]

120.0°

4.57 [.180]

2.67 [.105]

89091138

Version _______________________________

“R”

Clear Chemical Film per Mil-DTL-5541 Class 3, Type II

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Part Number Code

Conduction Cooled Keying

CCK x x - x - x - x

Board or Backplane

Free Connector: ____________________________

Fixed Connector: ___________________________

Connector End

01_______________________________________

32 _______________________________________

Keying Configuration

ZA ____________________________________________

ZC ____________________________________________

ZD ____________________________________________

AC ____________________________________________

AD ____________________________________________

CD ____________________________________________

Thread Type

Metric 2.5mm x .45 thread: ______________________________

[blank]

Imperial 2-56 thread: ________________________________________

Imperial 2-56 locking helicoil: ___________________________________

Metric 2.5mm x .45 locking helicoil: _______________________________

Finish Type

Chem Film Gold _________________________________________

[blank]

Chem Film Clear _____________________________________________

Also available in Kit Form (see

contents example below)

CCK-KIT -x -x

Keying Configuration

ZA ___________________________________________________

ZC ___________________________________________________

ZD ___________________________________________________

AC ___________________________________________________

AD ___________________________________________________

CD ___________________________________________________

Thread Type

Metric 2.5mm x .45 thread: ____________________________________

[Blank]

Imperial 2-56 thread:_____________________________________________-

Imperial 2-56 locking helicoil: _______________________________________ -

Metric 2.5mm x .45 locking helicoil:____________________________________ -

Example of Kit Contents:
CCK-KIT-ZA

Qty

Item

CCKP01-ZA

CCKJ01-ZA

CCKP32-ZA

CCKJ32-ZA

Complimentary Mounting Screws

Washers

VITA 1.6 Conduction Cooled Keying

CD key pair

AD key pair

AC key pair

CCKP32-ZD

mates with

CCKJ32-ZD

CCKP01-AD

mates with

CCKJ01-AD

CCKP32-CD

mates with

CCKJ32-CD

CCKP01-ZC

mates with

CCKJ01-ZC

CCKP32-AC

mates with

CCKJ32-AC

CCKP01-ZA

mates with

CCKJ01-ZA

ZA key pair

ZC key pair

ZD key pair

The drawings above are representative of the J32 and P32 configurations. J01 and P01 are mirror images.

Samples of coding key usage

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•

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Series 223 & Series 224 Torque-Limiting “Card-Lok” Patent no. 7,883,289

ALIGNMENT SPRINGS

Material:

Beryllium Copper QQ-C-533

Finish:

Nickel QQ-N-290 Class I, GradeG Bright

WEIGHT

1.12g/cm (.1oz/in)

Calmark offers the Series 223 and 224

Card-Lok retainer for cold plate / heat

exchanger applications. Ideal for field level

maintenance, the Series 223 and 224 Card-

Loks feature an integrated torque limiting

mechanism to simplify installation, optimize

clamping and thermal transfer performance,

and minimize the potential for damage to

the retainer, board and cold wall from over

torqueing.

FEATURES

•

Integrated ratchet mechanism (US Patent

7,883,289) simplifies installation

•

No need for specialized tools or knowledge

of torque spec; ideal for field-level

maintenance

•

Simple installation - turn the screw until

it clicks at least three times to achieve

the specified clamp force and optimize

thermal transfer

•

Available in two profiles – 5.72 mm x 6.86

mm (.225 in. x .270 in.) and 5.33 mm x

7.24 mm (.210 in. x 2.85 in.)

•

Lengths from 97 (3.8 in.) to 325 (12.8 in.)

in 12.7 (0.5 in.) increments

•

Flexible mounting options

•

Available with gold chem film, clear chem

film, black anodized, hard black anodized,

or electroless nickel finish

•

Alignment spring feature returns

wedge bodies to relaxed position when

unclamping

•

Clamp force, thermal transfer, life cycle

and environmental (MIL 810) test results

available

•

Each unit tested at factory prior to

shipment to ensure performance;

customer provided with a certificate of

conformance

•

Different clamp force ranges (higher or

lower) are available as custom product

WEDGES

Material:

Aluminum alloy 6061-T6 per ASTM-B221 or
AMS-QQ-A-200/8

Finish:

See Finish Table

TORQUE-LIMITING MECHANISM

Material:

Stainless Steel 17-4 PH

Finish:

Dry Film Lube per Mil-L-46010 Type 1

SCREW

LOCK NUT

Material:

Stainless steel per ASTM-A582

Material: Stainless steel per MS21043-04
Finish: Silver plate per AMS 2410

Finish:

Passivate per AMS2700

Series 223 & Series 224 Torque-Limiting “Card-Lok”

Recommended Gap:

Board Module Assembly

thickness plus

7.62 (.300) for Series 223,

8.00 (.315) for Series 224

Intermediate Wedge Bodies

with alignment springs

* Only one alignment spring

for lengths 122 (4.8) or less.

Front

Wedge

Assembly

Rear Wedge

Alignment

Spring

Cold Plate

Lock Nut

89066250

www.calmark.com • 800-854-7086

Part Number Code

Series 223 TL Card-Lok Five Piece

Series 224 TL Card-Lok Five Piece

M A 223 - 4.80 E T2

Prefix options

Metric Screw Head M2.5 Hex Drive_____________________

Black Anodize ____________________________________

or choose from Finish Table______________________

see table

Suffix options

Additional Center Mounting Hole

_______________________________________

None____________________________________________________

[blank]

Standard Screw Head 3/32 Hex Drive_______________

[blank]

Mounting options

2-56 tapped mounting hole or choose from Mounting Method Table _____________________

Part Number Code Example:

A224- 4.80T2
Series 224 Card-Lok 121.9 (4.8) long assembly length, black

anodized with two 2-56 threaded mounting holes

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film Finish Gold per Mil-DTL-5541, Type 1

Class 1A

“R”

Chemical Film Finish Clear per Mil-DTL-5541, Class 3 Type II

“A”

Black Anodize per Mil-A-8625, Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625, Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074, Class 4 Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Rivet Mounting Ø1.70 (.067) hole with

3.96 (.156) counterbore x 5.08 (.200) deep and 100º x 3.56

(.140) countersink

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 223 & Series 224 Torque-Limiting “Card-Lok”

Min length. = 97 (3.8), Max length = 325 (12.8), in 13 (0.5) increments_____

length.xx

Center hole location

“E” option only

M/2

3.23 (.127) Ref.

MF (Ref)

AL + 7.62 (.300) max

6.3 (.14) max.

Card-Lok Expanded

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

Mounting holes shown in wedge body -

screw and alignment spring hidden for clarity

2.38 (.094) Hex Socket Cap Per ANSI/

ASME B18.3

89091112

Series

H max

Min.

223

5.72 (.225)

6.86 (.270)

8.26 (.325)

224

5.33 (.210)

7.24 (.285)

8.64 (.340)

AL range ± 1.3 (.050)

M ± .13 (.005)

± .76 (.030)

From 97 (3.8) - 185 (7.3)

22.86 (.90)

AL+12.5 (.500)-M

From 198 (7.8) - 211 (8.3)

48.26 (1.90)

From 224 (8.8) - 325 (12.8)

73.66 (2.90)

www.calmark.com • 800-854-7086

Part Number Code

Series 225 Card-Lok Three Piece

M W V A 225 - 3.80 E H L R

Prefix options

Metric Screw Head M2.5 Hex Drive __________

Standard Screw Head 3/32 __________

[blank]

Lock and Flat Washer _____________________

None __________________________

[blank]

Visual Indicator ____________________________

No Visual Indicator _____________________

[blank]

Black Anodize ________________________________

or choose from Finish Table _________________

see table

Suffix options

Stainless Steel Captive (and Lock Nut if “R” option is also selected) ________

Standard Plated Steel___________________________________

“-”

Additional Center Mounting Hole _____________________________________

None _________________________________________________

[blank]

Mounting Options - holes for rivet mounting _________________________________

or choose from Mounting Option Table _______________________________

see table

Lock Element _______________________________________________________

None________________________________________________________

[blank]

Lock Nut _____________________________________________________________

Captive Screw __________________________________________________________

None __________________________________________________________

[blank]

Front
Wedge

Screw

Lock

Flat
Washer

Washer

8.4

(.33)

12.7

(.50)

REF

4.19

(.165)

Unlocked

Locked

7.6

(.300)

max. REF

OPTION PREFIX
Detail “V”

Detail “W”

Provides visual lock

indication.

Provides added resistance to loosening from shock

and vibration. This option adds 2.5 (.10) to the

screw length unless combined with the “R” suffix

option, then adds 5.1 (.20) total.

5.26

(.207)

OPTION SUFFIX

Detail “L”

Detail “R”

Detail “K”

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 22 N-cm (2 in-lbs)

of torque to assembly. See

application data on

previous sheet.

Reduces the possibility of uninten-

tional disassembly of the screw from rear

wedge.

Prevents the unintentional

disassembly of screw from

rear wedge. This option adds

5.1 (.20) to the screw length.

This option adds 2.5 (.10) to the screw

length unless combined with the “W”

suffix option, then 5.1 (.20) total.

Part Number Code Example:

VA225CR4.80HR
Series 225 Card-Lok three piece 121.9 (4.80) long with Visual Indicator,

Black Anodized Finish, standard rivet mounting hole and stainless steel

captive nut and lock nut option

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

“H”

Rivet Mounting Ø1.70 (.067) hole with

3.96 (.156) counterbore x 5.08 (.200) deep and 100º x 3.56

(.140) countersink

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 225 - “Card-Lok” Retainer (Cold Plate)

24.13 (.95) ±.76 (.03)

M = Assembly Length

minus 48.26 (1.900)

± .13 (.005)

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

Assembly Length ± 0.76 (.030)

Mounting holes shown in wedge

body – Screw hidden for clarity

M/2

± .13

(.005)

Assembly Length +5.1 (.200)

or more depending on options

Screw advancement 1.8 (.07) max.

If “V” prefix option, 6.1 (.24) max.

8.26 (.325) min.

6.86 (.270) max.

5.72

(.225)

2.38 (.094) Hex Socket Cap

Per ANSI/ASME B18.3

3.0 (.12)

Center hole location

“E” option only

Two holes standard. Extra hole

added with “E” option

89066270

Detail “K”
Prevents the unintentional disassembly of

screw from rear wedge. This option adds 5.1

(.20) to the screw length.

10.16

(.400)

max.

cut away view of rear

wedge and captive nut

locknut

spring

Detail “R”
Reduces the possibility of unintentional

disassembly of the screw from rear wedge.

This option adds 2.5 (.10) to the screw length

unless combined with the “W” prefix option,

then 5.1 (.20) total.

7.6

(.30)

max.

Detail “L”
Provides prevailing torque for resistance to

loosening from shock and vibration.

Lock element per

MIL-F-18240

applied to thread

of screw

Detail “W”

Provides added resistance to loosening from shock and

vibration. This option adds 2.5 (.10) to the screw length unless

combined with the “R” suffix option, then adds 5.1 (.20) total.

Front

Wedge

Flat

Washer

Lock

Washer

Screw

8.4

(.33)

Locked

Unlocked

12.7

(.50)

4.19

(.165)

5.26

(.207)

Detail “V”
Provides visual lock indication.

OPTIONAL 226 PART NUMBER PREFIXES

OPTIONAL 226 PART NUMBER SUFFIXES

“R”

Chemical Film per Mil-DTL-5541 Class 3, Type II, Clear

Two holes standard. Extra hole added

with “E” option.

Assembly length in inches. Standard lengths are 71.12 (2.80), 96.52 (3.80)

and 121.9 (4.80). Other lengths available upon request.

____________

length.xx

None __________________________________

[blank]

10.16

(.400)

max.

REF

locknut

spring

cut away view of

rear wedge

www.calmark.com

•

800-854-7086

Series E225 - “Card-Lok” Retainer (Ejector)

Calmark offers the feature of Ejection of

the PC Card with its Series 225 “Card-Lok”

Retainer. The Series E225 provides initial

ejection of the PC card without damaging

circuits, components or bending connector

pins. Ejector feature E is also available on

other Card-Lock Series on request.

FEATURES

•

Safe and Easy Ejection of PC Card

–

Screw actuation produces a jacking force

that disengages the PC card from its

mating connector

•

Maximum Reliability

– Screw-

actuated wedge action locks PC card in

place

•

Maximum Thermal Transfer

–

Wedge-action design provides maximum

contact between thermal path on PC card

and the heat sink surface

•

Maximum Resistance to Shock &

Vibration

– Wedge action design locks

PC card in place to provide maximum

resistance to shock and vibration

•

Zero Insertion & Extraction Forces

–

Screw actuation provides zero insertion

and extraction force on PC card

•

Design Flexibility

– Special lengths,

finishes or other design variations

available on request

Series E225 - “Card-Lok” Retainer (ejector)

MATERIALS & FINISHES

BODY & WEDGES

Aluminum alloy 6061-T6 per ASTM-B221 or
AMS-QQ-A-200/8

SCREW

Stainless Steel per ASTM-A582 or

RETAINER RING

THREADED INSERT

Stainless Steel per ASTM-A582

APPLICATION DATA

All mounting options except for “H” (rivet

mouting), parts are completely assembled

for shipping.
For “H” (rivet) Mounting Option, the screw

assembly and wedge body are shipped

unassembled.

Assemble parts as follows:

1. Rivet Wedge Body to

Printed Circuit Board.

2. Insert Screw Assembly

into Wedge Body.

3. Collapse Wedge

Body to captivate

screw assembly.

TOLERANCES

.xxx +/- .010 .xx +/- .02
(.xx +/-0.25 .x +/-0.5)

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(TXDOWR$VVHPEO\

/HQJWKPLQXV$'LP

6HH7DEXODWLRQ

3RLQWRIFRQWDFW

ZLWKHMHFWLRQVXUIDFH

SLHFHDVVHPEO\VKRZQ

SLHFHDYDLODEOHRQUHTXHVW

&KRLFHRIPRXQWLQJ

KROHVIRUHLWKHUULYHW

RUVFUHZPRXQWLQJ

6HH31&RGH

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IXUQLVKHGFRPSOHWHO\

DVVHPEOHG

NOTES

Clamping characteristics are the same as

standard Series 225.
“E” feature available on other Card-Lok series

on request.

MS122116, MS21209-CO210 (locking), 50253-1064

Finish:

See Finish Table

Passivate per MIL-S-5002

www.calmark.com • 800-854-7086

Part Number Code

Series E225 Card-Lok Three Piece

M W V E A 225 - 3.80 H

Prefix options

Metric Screw Head M2.5 Hex Drive ______________________

Standard Screw Head 3/32 Hex Drive ________________

[blank]

Lock and Flat Washer_________________________________

None______________________________________

[blank]

Visual Indicator________________________________________

No Visual Indicator ________________________________

[blank]

Black Anodize _____________________________________________

or choose from Finish Table _______________________________

see table

Suffix options

Mounting Options - holes for rivet mounting ________________________________________

or choose from Mounting Method Table _____________________________________

see table

Series E225 - “Card-Lok” Retainer (Ejector)

OPTION PREFIX
Detail “V”

Detail “W”

Provides visual lock

indicator.

Provides added resistance to loosening from shock

and vibration.

Part Number Code Example:

WVE225-4.80T2
Series E225 Ejecting Card-Lok three piece 121.9 (4.80) long with Lock

and Flat Washer, Visual Indicator, Gold Chemical Film Finish, mounting

holes drilled and tapped for 2-56 screw

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

“H”

Rivet Mounting Ø1.70 (.067) hole with

3.96 (.156) counterbore x 5.08 (.200) deep and 100º x

3.56 (.140) countersink

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Assembly length in inches. Standard lengths are 71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

Other lengths available upon request.

__________________________________

length.xx

Front
Wedge

Screw

Lock

Flat
Washer

Washer

8.4

(.33)

12.7

(.50)

REF

4.19

(.165)

Unlocked

Locked

5.26

(.207)

www.calmark.com • 800-854-7086

Part Number Code

Series L225 Card-Lok Three Piece

L225 - 3.80 E T0

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole ______________________________________________

No additional center mounting hole_______________________________________

[blank]

Mounting Options - 0-80 tapped holes _____________________________________________

or choose from Mounting Option Table

APPLICATION DATA

CLAMPING FORCE DATA

CLAMPING FORCE ADJUSTMENT PROCEDURE

Direct force of assembly is approximately 534N (120 lbs), when

adjusted per recommended procedure.

NOTE: Lever-Lok furnished assembled but not
adjusted.
1. Fasten Lever-Lok to Board Module Assembly.

Direct force of assembly is affected as follows: 8N (1.8 lbs) per each

.025 (.001) variation of cold plate slot width, or 200N (45 lbs) per

each full turn of locknut.

2. Insert Board Module Assembly into slot in

cold plate.

3. Actuate lever to locked/closed position.
4. Tighten locknut on end of screw until wedges initially

contact wall of cold plate slot, or slight insertion/extraction drag

is felt.

5. Additionally tighten locknut two (2) full turns.

DO NOT EXCEED TWO (2) TURNS.

6. Lever-Lok is now ready for use.

NOTE: Factory adjustment of clamping force

available on request.

Part Number Code Example:

L225-2.80
Series L225 Ejecting Card-Lok three piece 71.12 (2.80) long with black

anodize finish and 2-56 tapped holes

MOUNTING METHOD TABLE

Code

Letter

Method

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series L225 - “Card-Lok” Retainer (Lever-Lok)

[blank]

2-56` tapped hole

“T0”

0-80 tapped hole

6.86

(.270)

max.

M/2

3.63 (1.43)

5.72 (.225)

24.13 (.950) ± 0.8 (.030)

M = AL minus 48.26 (1.90)

± .13 (.005)

.508 (.020)

Assembly Length (AL) ± 0.76 (.03)

AL + 22.86 (.900)

Capable of expansion range of 6.86 (.270)

to 8.26 (.325). Requires adjustment to an

exact dimension within this range. See

Application Data

Two holes standard. Extra hole

added with “E” option.

Center hole location

“E” option only

Lever width .270

(6.86) Max

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

89091113

www.calmark.com • 800-854-7086

Part Number Code Example:

Part Number Code

MWA226-4.80HK

Series 226 Card-Lok Five Piece

M W V A 226 - 4.80 E H L R

Series 226 Card-Lok five piece 121.9 (4.80) long with M2.5 hex drive, lock

and flat washer, black anodize finish, holes for rivet mounting and captive

screw feature

Prefix options

Metric Screw Head M2.5 Hex Drive______________

Standard Screw Head 3/32 Hex Drive________

[blank]

FINISH TABLE

Lock and Flat Washer ________________________

Code

None _____________________________

[blank]

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

Visual Indicator _______________________________

No Visual Indicator ________________________

[blank]

Black Anodize __________________________________

or choose from Finish Table____________________

see table

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

Suffix options

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

Stainless Steel Captive (and Lock Nut if “R” option
is also selected) _______________________________________

Standard Plated Steel____________________________________

“-”

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

Additional Center Mounting Hole _____________________________________

None _________________________________________________

[blank]

Mounting Options - holes for rivet mounting _________________________________

or choose from Mounting Option Table _______________________________

see table

Lock Element _______________________________________________________

“H”

Rivet Mounting Ø1.70 (.067) hole with 3.96 (.156)

counterbore x 5.08 (.200) deep and 100º x 3.56 (.140) countersink

None_______________________________________________________

[blank]

“T0”

0-80 tapped hole

Lock Nut _____________________________________________________________

“T2”

2-56 tapped hole

Captive Screw __________________________________________________________

“TM2”

M2 x 0.40 tapped hole

None __________________________________________________________

[blank]

None _____________________________________

[blank]

“TM2.5”

M2.5 x 0.45 tapped hole

Series 226 - “Card-Lok” Retainer (Cold Plate)

“R”

Chemical Film per Mil-DTL-5541 Class 3, Type II, Clear

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request

Front
Wedge

Screw

Lock

Flat
Washer

Washer

8.4

(.33)

12.7

(.50)

REF

4.19

(.165)

Unlocked

Locked

7.6

(.300)

max. REF

OPTION PREFIX
Detail “V”

Detail “W”

Provides visual lock

indication.

Provides added resistance to loosening from shock

and vibration. This option adds 2.5 (.10) to the

screw length unless combined with the “R” suffix

option, then adds 5.1 (.20) total.

5.26

(.207)

OPTION SUFFIX

Detail “L”

Detail “R”

Detail “K”

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 22 N-cm (2 in-lbs)

of torque to assembly.

See application data on

previous sheet.

Reduces the possibility of uninten-

tional disassembly of the screw from rear

wedge.

Prevents the unintentional

disassembly of screw from

rear wedge. This option adds

5.1 (.20) to the screw length.

This option adds 2.5 (.10) to the screw

length unless combined with the “W”

suffix option, then 5.1 (.20) total.

Detail “K”
Prevents the unintentional disassembly of

screw from rear wedge. This option adds 5.1

(.20) to the screw length.

10.16

(.400)

max.

cut away view of rear

wedge and captive nut

locknut

spring

Detail “R”
Reduces the possibility of unintentional

disassembly of the screw from rear wedge.

This option adds 2.5 (.10) to the screw length

unless combined with the “W” prefix option,

then 5.1 (.20) total.

7.6

(.30)

max.

Detail “L”
Provides prevailing torque for resistance to

loosening from shock and vibration.

Lock element per

MIL-F-18240

applied to thread

of screw

Detail “W”

Provides added resistance to loosening from shock and

vibration. This option adds 2.5 (.10) to the screw length unless

combined with the “R” suffix option, then adds 5.1 (.20) total.

Front

Wedge

Flat

Washer

Lock

Washer

Screw

8.4

(.33)

Locked

Unlocked

12.7

(.50)

4.19

(.165)

5.26

(.207)

Detail “V”
Provides visual lock indication.

OPTIONAL 226 PART NUMBER PREFIXES

OPTIONAL 226 PART NUMBER SUFFIXES

10.16

(.400)

max.

REF

locknut

spring

cut away view of

rear wedge

Assembly Length (AL) ± 1.3 (.05)

Assembly Length Range

M ± .13 (.005)

Mounting holes shown in wedge body –

Screw and alignment spring hidden for clarity

121.9 (4.80) to 190.4 (7.49) 22.86 (.900)
190.5 (7.50) to 215.9 (8.49) 48.26 (1.90)

2.38 (.094)

Hex Socket Cap

Per ANSI/ASME B18.3

216.0 (8.50) to 329.9 (12.99) 73.66 (2.90)

M/2

± .13

(.005)

6.86

(270)

3.0 (.12)

5.72

(.225)

Assembly Length - M ± 1.14 (.045)

M ± .13 (.005)

Screw length equal to assembly length plus .20” min in increments of .10”
(example: an assembly length of 4.85” would use a screw length of 5.10”)

3.6 (.14) max. screw advancement

7.9 (.31) if visual lock option

8.26 (.325) min.

Two holes standard. Extra hole

added with “E” option

Center hole location

“E” option only

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

89091114

www.calmark.com • 800-854-7086

Part Number Code

Series 230 Card-Lok Three Piece

M W V A 230 - 3.80 E H L R

Prefix options

Metric Screw Head M2.5 Hex Drive_____________

Standard Screw Head 3/32 Hex Drive_______

[blank]

Lock and Flat Washer ________________________

None _____________________________

[blank]

Visual Indicator _______________________________

No Visual Indicator ________________________

[blank]

Black Anodize __________________________________

or choose from Finish Table____________________

see table

Suffix options

Stainless Steel Lock Nut if “R” option is selected ___________________

Standard Steel Lock Nut_________________________________

“-”

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole ______________________________________

None _________________________________________________

[blank]

Mounting Options - holes for rivet mounting __________________________________

or choose from Mounting Option __________________________________

see table

Lock Element _______________________________________________________

None________________________________________________________

[blank]

Lock Nut _____________________________________________________________

Captive Screw __________________________________________________________

None __________________________________________________________

[blank]

None _____________________________________

[blank]

Assembly Length (AL) ± 0.76 (.030)

2.38 (.094) Hex Socket Cap Per ANSI/

ASME B18.3

Mounting holes shown in wedge body –

Screw hidden for clarity

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

M/2

5.72 (.220)

± .13 (.005)

3.0 (.12)

24.13 (.950) ±.76 (.030)

5.59

(.220)

6.99
(.275)
min.

OPTION PREFIX
Detail “V”

Detail “W”

Provides visual lock

indication.

OPTION SUFFIX

Detail “L”

Reduces the

possibility of

unintentional

disassembly

of the screw from rear wedge. This option

adds no additional screw length with or

without “CR” unless included with “W”

option, then 2.5 (.10) total.

Detail “R”

Detail “K”

Detail “CR”

Provides prevailing

torque for resistance

to loosening from

shock and vibration.

Prevents the uninten-

tional disassembly

of screw from rear

wedge. This option

adds 5.1 (.20) to the

screw length.

If the “R” option

is included with

this “CR” option,

then the locknut is

stainless steel.

Part Number Code Example:

VA230CR4.80HR
Series 230 Card-Lok three piece 121.9 (4.80) long with visual indicator, black

anodize finish, standard rivet mounting holes and stainless steel lock nut

option

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

“H”

Rivet Mounting Ø1.70 (.067) hole with

3.96 (.156) counterbore x 4.19 (.165) deep and 100º x 3.56

(.140) countersink

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 230 - “Card-Lok” Retainer (Cold Plate)

Detail “K”
Prevents the unintentional disassembly of

screw from rear wedge. This option adds 5.1

(.20) to the screw length.

10.16

(.400)

max.

cut away view of rear

wedge and captive nut

locknut

spring

Detail “R”
Reduces the possibility of unintentional

disassembly of the screw from rear wedge.

This option adds 2.5 (.10) to the screw length

unless combined with the “W” prefix option,

then 5.1 (.20) total.

7.6

(.30)

max.

Detail “L”
Provides prevailing torque for resistance to

loosening from shock and vibration.

Lock element per

MIL-F-18240

applied to thread

of screw

Detail “W”

Provides added resistance to loosening from shock and

vibration. This option adds 2.5 (.10) to the screw length unless

combined with the “R” suffix option, then adds 5.1 (.20) total.

Front

Wedge

Flat

Washer

Lock

Washer

Screw

8.4

(.33)

Locked

Unlocked

12.7

(.50)

4.19

(.165)

5.26

(.207)

Detail “V”
Provides visual lock indication.

OPTIONAL 226 PART NUMBER PREFIXES

OPTIONAL 226 PART NUMBER SUFFIXES

Two holes standard. Extra hole
added with “E” option.

Screw length equal to assembly length plus .20” min in increments of .10”
(example: an assembly length of 4.85” would use a screw length of 5.10”)

5.1

(.20)

max.

REF

1.8 (.07) max. screw advancement

6.1 (.24) if visual lock option

Front
Wedge

Screw

Lock

Flat
Washer

Washer

8.4

(.33)

12.7

(.50)

REF

4.19

(.165)

Unlocked

Locked

5.26

(.207)

10.16

(.400)

max.

REF

locknut

spring

cut away view of

rear wedge

Center hole location
“E” option only

Provides added resistance to loosening from shock and

vibration. This option adds no additional screw length unless

combined with the “R” suffix option, then adds 2.5 (.10) total.

5.1

(.20)

max.

REF

M = AL minus 48.26 (1.90)

± .13 (.005)

www.calmark.com

•

800-854-7086

Calmark offers the Series 231 “Card-Lok”

retainer for cold plate-heat exchanger

applications. A mid-width configuration,

to meet Board Module Assembly retainer

expansion requirements between the Series

225 and 240.

FEATURES

• Maximum Reliability – Screw-actuated

wedge action locks Board Module

Assembly in place

• Maximum Thermal Transfer – Wedge

action design provides maximum

contact between thermal paths on

Board Module Assembly and the heat

sinking surface

• Maximum Resistance to Shock &

Vibration – Wedge action design locks

Board Module Assembly in place to

provide maximum resistance to shock

and vibration

• Zero Insertion & Extraction Forces –

Screw actuation provides zero insertion

and extraction force on Board Module

Assembly

• Design Flexibility – Special lengths,

finishes or other design variations

available on request

Series 231 - “Card-Lok” Retainer (cold plate)

BODIES & WEDGES

Material:

Aluminum alloy 6061-T6 per ASTM-
B221 or AMS-QQ-A-200/8

Finish:

See Finish Table

SCREW

Material:

Stainless steel per ASTM-A582

Finish:

Passivate per AMS2700

WEIGHT

1.34 g/cm (.120 oz/in)

Series 231 - “Card-Lok” Retainer (Cold Plate)

Recommended Gap:

Board Module

Assembly

thickness plus

6.35 (.250)

Board Module

Assembly

Wedge body may

be screwed,

riveted or bonded

to Board Module

Assembly

Intermediate Wedge

Bodies with alignment

springs

Front

Wedge

Alignment

Spring

Screw

Cold Plate

Rear Wedge

89067434

Application Data

Recommended Torque 68 N-cm (6 in-lbs)

If Locking Element option, add 22 N-cm (2 in-lbs)

www.calmark.com • 800-854-7086

Reduces the

possibility of

unintentional

disassembly of the

screw from rear wedge. This option

adds no additional screw length with or

without “CR” unless included with “W”

option, then 2.5 (.10) total.

Part Number Code Example:

W231-4.80LR

Part Number Code

Series 231 Card-Lok Five Piece

M W V A 231 - 4.80 E H L R

Prefix options

Metric Screw Head M2.5_________________

Standard Screw Head 3/32 ___________

[blank]

Lock and Flat Washer ______________________

None ___________________________

[blank]

Visual Indicator ____________________________

No Visual Indicator _____________________

[blank]

Black Anodize ________________________________

or choose from Finish Table _________________

see table

Suffix options

Stainless Steel Lock Nut if “R” option is selected___________________

Standard Plated Steel___________________________________

“-”

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole ______________________________________

None _________________________________________________

[blank]

Mounting Options - holes for rivet mounting _________________________________

or choose from Mounting Option Table _______________________________

see table

Lock Element _______________________________________________________

None_______________________________________________________

[blank]

Lock Nut _____________________________________________________________

Captive Screw __________________________________________________________

None __________________________________________________________

[blank]

Front

Screw

Wedge

Lock

Flat

Washer

OPTION PREFIX
Detail “V”

Detail “W”

Provides visual lock

indication.

OPTION SUFFIX

Detail “L”

Detail “K”

Detail “CR”

Detail “R”

Provides prevailing

torque for resistance

to loosening from

shock and vibration.

Prevents the uninten-

tional disassembly

of screw from rear

wedge. This option

adds 5.1 (.20) to the

screw length.

Series 231 Card-Lok five piece 121.9 (4.80) long with lock and flat washer, gold

chemical finish, lock element, no mounting holes and a plated steel lock nut

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

“H”

Rivet Mounting Ø1.70 (.067) hole with

3.96 (.156) counterbore x 4.19 (.165) deep and 100º x 3.56

(.140) countersink

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 231 - “Card-Lok” Retainer (Cold Plate)

Detail “K”
Prevents the unintentional disassembly of

screw from rear wedge. This option adds 5.1

(.20) to the screw length.

10.16

(.400)

max.

cut away view of rear

wedge and captive nut

locknut

spring

Detail “R”
Reduces the possibility of unintentional

disassembly of the screw from rear wedge.

This option adds 2.5 (.10) to the screw length

unless combined with the “W” prefix option,

then 5.1 (.20) total.

7.6

(.30)

max.

Detail “L”
Provides prevailing torque for resistance to

loosening from shock and vibration.

Lock element per

MIL-F-18240

applied to thread

of screw

Detail “W”

Provides added resistance to loosening from shock and

vibration. This option adds 2.5 (.10) to the screw length unless

combined with the “R” suffix option, then adds 5.1 (.20) total.

Front

Wedge

Flat

Washer

Lock

Washer

Screw

8.4

(.33)

Locked

Unlocked

12.7

(.50)

4.19

(.165)

5.26

(.207)

Detail “V”
Provides visual lock indication.

OPTIONAL 226 PART NUMBER PREFIXES

OPTIONAL 226 PART NUMBER SUFFIXES

If the “R” option is

included with this

“CR” option, then

the locknut is

stainless steel.

8.4

(.33)

12.7

(.50)

REF

4.19

(.165)

Unlocked

Locked

5.26

(.207)

10.16

(.400)

max.

REF

locknut

spring

cut away view of

rear wedge

Provides added resistance to loosening from shock

and vibration. This option adds no additional screw

length unless combined with the “R” suffix option,

then adds 2.5 (.10) total.

Assembly Length ± 1.3 (.050)

Mounting holes shown in wedge body –

Screw and alignment spring hidden for clarity

Assembly Length Range

M ± .13 (.005)

2.38 (.094)

Hex Socket Cap

Per ANSI/ASME B18.3 121.9 (4.80) to 190.4 (7.49) 22.86 (.900)

190.5 (7.50) to 215.9 (8.49) 48.26 (1.90)

216.0 (8.50) to 329.9 (12.99) 73.66 (2.90)

5.72 (.220)

3.0 (.12)

Assembly Length - M ± 1.14 (.045)

M ± .13 (.005)

5.72

(.220)

3.6 (.14) max. screw advancement

7.9 (.31) if visual lock option

6.99

(.275)

Screw length equal to assembly length plus .20” min in increments of .10”

(example: an assembly length of 4.85” would use a screw length of 5.10”)

M/2

± .13 (.005)

Center hole location

“E” option only

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

Two holes standard. Extra hole

added with “E” option

89091115

5.1

(.20)

max.

REF

5.1

(.20)

max.

REF

www.calmark.com • 800-854-7086

Part Number Code

Series 235 Card-Lok Three Piece

S A 235 - 4.80 E TM2.5 P

Prefix options

Slotted Drive ______________________________

2mm Hex Drive _______________________

[blank]

Finish options

Black Anodize ________________________________

or choose from Finish Table

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request

Additional Center Mounting Hole _____________________________________

None _________________________________________________

[blank]

Mounting Options - M2.5 tapped hole____________________________________

TM2.5

or choose from Mounting Option Table __________________________________

see table

Locking Insert Option_________________________________________________________

None _____________________________________________________________

[blank]

2.0 (.079) Hex Socket Cap

Per ANSI/ASME B18.3

Assembly Length

0.76 (.030)

7.32 (.288)

max.

M/2 ± .13 (.005)

See “E” suffix option

22.86 (.900) ± .76 (.030)

5.84

(.230)

M = Assembly Length

minus 45.72 (1.80) ± .13 (.005)

8.64 (.340) min.

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

Part Number Code Example:

A235-2.80ETM2.5
Series 235 Card-Lok three piece, black anodized, 71.12 (2.80) assembly

length, with three M2.5 tapped mounting holes.

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 235 - “Card-Lok” Retainer (Cold Plate)

Two holes standard. Extra hole
added with “E” option.
See “E” suffix option.

www.calmark.com • 800-854-7086

Part Number Code

Series 236 Card-Lok Five Piece

S A 236 -

5.80 E TM2.5 P

Prefix options

Slotted Drive ______________________________

2mm Hex Drive _______________________

[blank]

Finish options

Black Anodize ________________________________

or choose from Finish Table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole ______________________________________

None __________________________________________________

[blank]

Mounting Options - M2.5 tapped hole ____________________________________

TM2.5

or choose from Mounting Option Table__________________________________

see table

Locking Insert Option________________________________________________________

None ____________________________________________________________

[blank]

Part Number Code Example:

A236-2.80ETM2.5
Series 236 Card-Lok five piece, black anodized, 71.12 (2.80) asembly

length, with three M2.5 tapped mounting holes.

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 236 - “Card-Lok” Retainer (Cold Plate)

“T0”

0-80 tapped hole

“R”

Chemical Film per Mil-DTL-5541 Class 3, Type II, Clear

2.0 (.079) Hex Socket Cap

Per ANSI/ASME B18.3

Assembly Length ± 1.3 (.050)

M/2

± .13 (.005)

7.32 (.288)

max.

Assembly Length - M ± .76 (.045)

M ± .13 (.005)

5.84

(.230)

8.64 (.340) min.

Assembly Length Range

121.9 (4.80) to 197.9 (7.79) 25.40 (1.00)

198.1 (7.80) to 329.9 (12.99) 50.80 (2.00)

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

Two holes standard. Extra hole

added with “E” option.

Center hole location

“E” option only

89091116

www.calmark.com • 800-854-7086

Part Number Code

Series 240 Card-Lok Three Piece

M W A 240 - 4.80 E H L R

Prefix options

Metric Screw Head M2.5 Hex Drive _____________

Standard Screw Head 3/32 Hex Drive________

[blank]

Lock and Flat Washer ________________________

None _____________________________

[blank]

Black Anodize ________________________________

or choose from Finish Table _________________

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole _______________________________________

None ___________________________________________________

[blank]

Mounting Options - holes for rivet mounting____________________________________

or choose from Mounting Option Table _________________________________

see table

Lock Element __________________________________________________________

None _________________________________________________________

[blank]

Lock Nut ________________________________________________________________

None ____________________________________________________________

[blank]

Front

Screw

Wedge

Lock

Flat

Washer

5.1

(.20)

max.

REF

Assembly Length ± 0.76 (.030)

2.38 (.094) Hex Socket Cap Per ANSI/

ASME B18.3

Mounting holes shown in wedge body –

Screw hidden for clarity

4.57 (.180) max.

M/2

± .13 (.005)

3.0 (.12)

24.13 (.950) ±.76 (.035)

M = Assembly Length minus

48.26 (1.90) ± .13 (.005)

6.10

(.240)

Assembly Length +5.1 (.200)

2.1 (.080) max. screw advancement

5.59 (.220) min.

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

OPTION PREFIX

Detail “L”

Detail “R”

Detail “W”

Provides prevailing torque for

resistance to loosening from

shock and vibration. Adds

22 N-cm (2 in-lbs) torque to

assembly. See application

data on previous sheet.

Reduces the possibility of

unintentional disassembly of the

screw from rear wedge. This option

adds adds 2.54 (.100) to the screw

length when combined with the

“W” option. Lock Nut material:

stainless steel.

Provides added resistance to loosening from shock and

vibration. This option adds 2.54 (.100) to the screw length

when combined with the “R” option.

Part Number Code Example:

A240CR3.80EHLR
Series 240 three piece Card-Lok, black anodized finish, 96.52 (3.80) long,

holes for rivet mounting including an extra center mounting hole, with

locking element on the screw thread and a stainless steel locknut

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

“H”

Rivet Mounting Ø1.70 (.067) hole with

3.96 (.156) counterbore x 5.08 (.200) deep and 100º x 3.56

(.140) countersink

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 240 - “Card-Lok” Retainer (Cold Plate)

Detail “K”
Prevents the unintentional disassembly of

screw from rear wedge. This option adds 5.1

(.20) to the screw length.

10.16

(.400)

max.

cut away view of rear

wedge and captive nut

locknut

spring

Detail “R”
Reduces the possibility of unintentional

disassembly of the screw from rear wedge.

This option adds 2.5 (.10) to the screw length

unless combined with the “W” prefix option,

then 5.1 (.20) total.

7.6

(.30)

max.

Detail “L”
Provides prevailing torque for resistance to

loosening from shock and vibration.

Lock element per

MIL-F-18240

applied to thread

of screw

Detail “W”

Provides added resistance to loosening from shock and

vibration. This option adds 2.5 (.10) to the screw length unless

combined with the “R” suffix option, then adds 5.1 (.20) total.

Front

Wedge

Flat

Washer

Lock

Washer

Screw

8.4

(.33)

Locked

Unlocked

12.7

(.50)

4.19

(.165)

5.26

(.207)

Detail “V”
Provides visual lock indication.

OPTIONAL 226 PART NUMBER PREFIXES

OPTIONAL 226 PART NUMBER SUFFIXES

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Two holes standard. Extra hole
added with “E” option.

Screw length equal to assembly length plus .20” min in increments of .10”
(example: an assembly length of 4.85” would use a screw length of 5.10”)

OPTION SUFFIX

Center hole location
“E” option only

www.calmark.com • 800-854-7086

Part Number Code

Series 245 Card-Lok Three Piece

M W V A 245 - 4.80 E H L R

Prefix options

Metric Screw Head M2.5_________________

Standard Screw Head 7/64 ___________

[blank]

Lock and Flat Washer _____________________

None __________________________

[blank]

Visual Indicator (changes hex drive to 3/32)___________

No Visual Indicator _____________________

[blank]

Black Anodize ________________________________

or choose from Finish Table _________________

see table

Suffix options

Stainless Steel Lock Nut if “R” option is selected ___________________

Standard Plated Steel___________________________________

“-”

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole _____________________________________

None _________________________________________________

[blank]

Mounting Options - holes for rivet mounting _________________________________

or choose from Mounting Option Table ______________________________

see table

Lock Element _______________________________________________________

None_______________________________________________________

[blank]

Lock Nut _____________________________________________________________

Captive Screw __________________________________________________________

None __________________________________________________________

[blank]

None __________________________________________________________

[blank]

Assembly Length ± 0.76 (.030)

2.78 (.109) Hex Socket Cap Per ANSI/

ASME B18.3

Mounting holes shown in wedge body –

Screw hidden for clarity

6.86 (.270) max.

M/2

± .13 (.005)

3.3 (.13)

24.13 (.950) ±.76 (.030)

M = Assembly Length minus

48.26 (1.90) ± .13 (.005)

6.60

(.260)

Screw length equal to assembly length plus

.20” min in increments of .10”

(example: an assembly length of 4.85”

would use a screw length of 5.10”)

1.8 (.070) max. screw advancement

if visual lock option 6.1 (.240)

8.26
(.325)
min.

Front

Screw

Wedge

Lock

Flat

Washer

9.9

(.39)

14.2

(.56)

REF

5.00

(.197)

Unlocked

Locked

7.6

(.30)

max.

REF

OPTION PREFIX
Detail “V”

Detail “W”

Provides visual lock

indication. Changes hex

drive to 2.38 (.094). This

option adds 5.08 (.20) to

screw length

Provides added resistance to loosening from shock and

vibration. This option adds 2.5 (.10) to the screw length

when combined with the “R” suffix option.

6.58

(.259)

OPTION SUFFIX

Detail “L”

Detail “R”

Detail “K”

Prevents the unintentional disas-

sembly of screw from rear wedge.

This option adds 5.08 (.200) to the

screw length.

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 34 N-cm (3 in-lbs)

torque to assembly. See

application data on previous

sheet.

Reduces the possibility of unintentional

disassembly of the screw from rear

wedge. This option adds 2.54 (.10)

to the screw length unless when

combined with the “W” suffix option,

then it adds 5.08 (.20).

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

Part Number Code Example:

245-3.80H Series 245 three piece Card-Lok, 96.52 (3.80) long, gold chemical

film finish with holes for rivet mounting

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

3.96 (.156) counterbore x 5.08 (.200) deep and 100º x 3.56

(.140) countersink

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 245 - “Card-Lok” Retainer (Cold Plate)

Detail “K”
Prevents the unintentional disassembly of

screw from rear wedge. This option adds 5.1

(.20) to the screw length.

10.16

(.400)

max.

cut away view of rear

wedge and captive nut

locknut

spring

Detail “R”
Reduces the possibility of unintentional

disassembly of the screw from rear wedge.

This option adds 2.5 (.10) to the screw length

unless combined with the “W” prefix option,

then 5.1 (.20) total.

7.6

(.30)

max.

Detail “L”
Provides prevailing torque for resistance to

loosening from shock and vibration.

Lock element per

MIL-F-18240

applied to thread

of screw

Detail “W”

Provides added resistance to loosening from shock and

vibration. This option adds 2.5 (.10) to the screw length unless

combined with the “R” suffix option, then adds 5.1 (.20) total.

Front

Wedge

Flat

Washer

Lock

Washer

Screw

8.4

(.33)

Locked

Unlocked

12.7

(.50)

4.19

(.165)

5.26

(.207)

Detail “V”
Provides visual lock indication.

OPTIONAL 226 PART NUMBER PREFIXES

OPTIONAL 226 PART NUMBER SUFFIXES

“R”

Chemical Film per Mil-DTL-5541 Class 3,

“H”

Rivet Mounting Ø1.70 (.067) hole with

Two holes standard. Extra hole
added with “E” option.

Center hole location
“E” option only

10.16

(.400)

max.

REF

locknut

cut away view of

rear wedge

spring

www.calmark.com • 800-854-7086

Part Number Code

Series 250 Card-Lok Three Piece

M W V A 250 - 3.80 E H L R

Prefix options

Metric Screw Head M4 Hex Drive ______________

Standard Screw Head 9/64 Hex Drive________

[blank]

Lock and Flat Washer ________________________

None _____________________________

[blank]

Visual Indicator _______________________________

No Visual Indicator ________________________

[blank]

Black Anodize __________________________________

or choose from Finish Table____________________

see table

Suffix options

Stainless Steel Lock Nut if “R” option is selected ____________________

Standard Plated Steel Lock Nut ______________________________

“-”

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request

Additional Center Mounting Hole _____________________________________

None _________________________________________________

[blank]

Mounting Options - holes for rivet mounting _________________________________

or choose from Mounting Option Table ______________________________

see table

Lock Element _______________________________________________________

None_______________________________________________________

[blank]

Lock Nut _____________________________________________________________

Captive Screw __________________________________________________________

None __________________________________________________________

[blank]

None __________________________________________________________

[blank]

Assembly Length ± 0.76 (.030)

3.57 (.141) Hex Socket Cap

Per ANSI/ASME B18.3

Mounting holes shown in wedge body –

Screw hidden for clarity

9.78 (.385) max.

M/2

± .13 (.005)

4.1 (.16)

24.13 (.950) ±.76 (.035)

M = Assembly Length minus

48.26 (1.90) ± .13 (.005)

9.53

(.375)

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)
Note: Each piece has a tolerance of

± .010

Front

Screw

Wedge

Lock

Flat

Washer

7.6

(.30)

max.

REF

OPTION PREFIX
Detail “V”

Detail “W”

Provides visual lock

indication. This option

adds 5.08 (.20) to the

screw length.

Provides added resistance to loosening from shock and

vibration. This option adds 5.08 (.20) to the screw length

when combined with the “R” suffix option.

OPTION SUFFIX
Detail “L”

Detail “R”

Detail “K”

Reduces the possibility of

unintentional disassembly of the

screw from rear wedge. This option

adds no additional screw length un-

less included with “W” option, then

5.08 (20) total.

Prevents the unintentional disas-

sembly of screw from rear wedge.

This option adds 5.08 (.200) to

the screw length.

Part Number Code Example:

V250CR4.80HR
Series 250 Card-Lok three piece 121.9 (4.80) long with Visual Indicator, gold

chemical film finish, standard rivet mounting hole and stainless steel lock

nut option

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

[blank]

No mounting holes

4.95 (.195) counterbore x 7.62 (.300) deep and 100º x 4.95

(.195) countersink

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 250 - “Card-Lok” Retainer (Cold Plate)

Detail “K”
Prevents the unintentional disassembly of

screw from rear wedge. This option adds 5.1

(.20) to the screw length.

10.16

(.400)

max.

cut away view of rear

wedge and captive nut

locknut

spring

Detail “R”
Reduces the possibility of unintentional

disassembly of the screw from rear wedge.

This option adds 2.5 (.10) to the screw length

unless combined with the “W” prefix option,

then 5.1 (.20) total.

7.6

(.30)

max.

Detail “L”
Provides prevailing torque for resistance to

loosening from shock and vibration.

Lock element per

MIL-F-18240

applied to thread

of screw

Detail “W”

Provides added resistance to loosening from shock and

vibration. This option adds 2.5 (.10) to the screw length unless

combined with the “R” suffix option, then adds 5.1 (.20) total.

Front

Wedge

Flat

Washer

Lock

Washer

Screw

8.4

(.33)

Locked

Unlocked

12.7

(.50)

4.19

(.165)

5.26

(.207)

Detail “V”
Provides visual lock indication.

OPTIONAL 226 PART NUMBER PREFIXES

OPTIONAL 226 PART NUMBER SUFFIXES

“R”

Chemical Film per Mil-DTL-5541 Class 3,

“H”

Rivet Mounting Ø3.45 (.136) hole with

Two holes standard. Extra hole
added with “E” option.

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 45 N-cm (4 in-lbs)

torque to assembly. See

application data on previous

sheet.

Screw length equal to assembly length plus

.20” min in increments of .10”

(example: an assembly length of 4.85”

would use a screw length of 5.10”)

2.6 (.100) max. screw advancement

if visual lock option 6.1 (.240)

8.4

(.33)

12.7

(.50)

REF

6.99

(.275)

Unlocked

Locked

8.89

(.350)

10.16

(.400)

max.

REF

locknut

spring

cut away view of

rear wedge

11.94 (.470) min.

Center hole location
“E” option only

www.calmark.com • 800-854-7086

Part Number Code

Series 255 Card-Lok Three Piece

M W V A 255 - 3.80 E H L R

Prefix options

Metric Screw Head M4 Hex Drive_____________

Standard Screw Head 5/32 Hex Drive________

[blank]

Lock and Flat Washer ________________________

None _____________________________

[blank]

Visual Indicator _______________________________

No Visual Indicator ________________________

[blank]

Black Anodize __________________________________

or choose from Finish Table____________________

see table

Suffix options

Stainless Steel Lock Nut if “CR” option is selected ___________________

Standard Plated Steel Lock Nut _____________________________

“-”

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request

Additional Center Mounting Hole _____________________________________

None _________________________________________________

[blank]

Mounting Options - holes for rivet mounting _________________________________

or choose from Mounting Option Table ______________________________

see table

Lock Element _______________________________________________________

None_______________________________________________________

[blank]

Lock Nut _____________________________________________________________

Captive Screw __________________________________________________________

None __________________________________________________________

[blank]

None __________________________________________________________

[blank]

Assembly Length ± 0.76 (.03)

3.96 (.156) Hex Socket Cap Per ANSI/

ASME B18.3

Mounting holes shown in wedge body –
Screw hidden for clarity

11.70 (.460) max.

M/2

± .13 (.005)

4.8 (.19)

24.13 (.950) ±.76 (.035)

M = Assembly Length minus

48.26 (1.90) ± .13 (.005)

12.70

(.500)

Front

Screw

Wedge

Lock

Flat

Washer

10.2

(.40)

14.5

(.57)

REF

7.87

(.310)

7.6

(.30)

max.

REF

OPTION PREFIX
Detail “V”

Detail “W”

Provides visual lock

indication. This option

adds 5.08 (.20) to the

screw length.

Provides added resistance to loosening from shock and

vibration. This option adds 5.08 (.20) to the screw length

when combined with the “R” suffix option.

10.92

(.430)

OPTION SUFFIX
Detail “L”

Detail “R”

Detail “K”

Reduces the possibility of

unintentional disassembly of the

screw from rear wedge. This option

adds no additional screw length

unless included with “W” option,

then 5.1 (.20) total.

Prevents the unintentional disas-

sembly of screw from rear wedge.

This option adds 5.08 (.200) to

the screw length.

Part Number Code Example:

VA255CR4.80HR
Series 255 Card-Lok three piece 121.9 (4.80) long with Visual Indicator,

black anodized finish, standard rivet mounting hole and stainless steel lock

nut option

FINISH TABLE

Code

Letter

Finish

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

4.95 (.195) counterbore x 9.91 (.390) deep and 100º x 4.95

(.195) countersink

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 255 - “Card-Lok” Retainer (Cold Plate)

Detail “K”
Prevents the unintentional disassembly of

screw from rear wedge. This option adds 5.1

(.20) to the screw length.

10.16

(.400)

max.

cut away view of rear

wedge and captive nut

locknut

spring

Detail “R”
Reduces the possibility of unintentional

disassembly of the screw from rear wedge.

This option adds 2.5 (.10) to the screw length

unless combined with the “W” prefix option,

then 5.1 (.20) total.

7.6

(.30)

max.

Detail “L”
Provides prevailing torque for resistance to

loosening from shock and vibration.

Lock element per

MIL-F-18240

applied to thread

of screw

Detail “W”

Provides added resistance to loosening from shock and

vibration. This option adds 2.5 (.10) to the screw length unless

combined with the “R” suffix option, then adds 5.1 (.20) total.

Front

Wedge

Flat

Washer

Lock

Washer

Screw

8.4

(.33)

Locked

Unlocked

12.7

(.50)

4.19

(.165)

5.26

(.207)

Detail “V”
Provides visual lock indication.

OPTIONAL 226 PART NUMBER PREFIXES

OPTIONAL 226 PART NUMBER SUFFIXES

“R”

Chemical Film per Mil-DTL-5541 Class 3,

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“H”

Rivet Mounting Ø3.45 (.136) hole with

[blank]

No mounting holes

Two holes standard. Extra hole
added with “E” option.

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 57 N-cm (5 in-lbs)

torque to assembly. See

application data on previous

sheet.

Screw length equal to assembly length plus

.20” min in increments of .10”

(example: an assembly length of 4.85”

would use a screw length of 5.10”)

5.1 (.20) max. screw advancement

if visual lock option 9.4 (.37)

15.24 (.600) min.

Center hole location
“E” option only

Unlocked

Locked

10.16

(.400)

max.

REF

locknut

spring

cut away view of

rear wedge

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

www.calmark.com • 800-854-7086

Part Number Code

Series 260 Card-Lok Five Piece

M V A 260 - 3.80 E H L K

Prefix options

Metric Screw Head M2.5 Hex Drive _____________

Standard Screw Head 3/32 Hex Drive________

[blank]

Visual Indicator ____________________________

No Visual Indicator _____________________

[blank]

Black Anodize ________________________________

or choose from Finish Table _________________

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole _____________________________________

None _________________________________________________

[blank]

Mounting Options - through mounting holes_________________________________

or choose from Mounting Option Table ______________________________

see table

Lock Element _______________________________________________________

None_______________________________________________________

[blank]

Captive Screw __________________________________________________________

None __________________________________________________________

[blank]

2.38 (.094) Hex Socket Cap Per ANSI/

ASME B18.3

M/2

± .13 (.005)

6.86 (.270) max.

4.6 (.18) REF

6.35

(.250)

20.32 (.800)

M = Assembly Length
minus 48.26 (1.90)

± .13 (.005)

7.6 (.300) max.

8.26 (.325) min.

8.9

(.35)

5.8

(.23)

4.57

(.180)

Unlocked

Locked

OPTION PREFIX
Detail “V”

Provides visual lock

indication.

5.77

(.227)

OPTION SUFFIX
Detail “L”

Detail “K”

Prevents the unintentional

disassembly of screw from front

wedge.

Part Number Code Example:

MVA260-3.80ET2LK
Series 260 Card-Lok five piece 96.52 (3.80) long black anodized with M2.5

hex drive, visual indicator, three mounting holes tapped for 2-56 thread,

locking element and captive screw feature

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Ø1.73/1.85 (.068/.073) dia. through holes countersink

100° x 1.50 (.060) deep

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 260 - “Card-Lok” Retainer (Cold Plate)

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Two holes standard. Extra hole
added with “E” option.

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 22 N-cm (2 in-lbs)

torque to assembly. See

application data on previous

sheet.

Center hole location
“E” option only

Lock element per
MIL-F-18240

slotted shaft

cut away view of front wedge

slotted screw

applied to thread of screw

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

Assembly Length ± 1.3 (.050)

www.calmark.com • 800-854-7086

Part Number Code

Series L260 Card-Lok Five Piece

L260 - 3.80 TM2 -1 P

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80)

___________________

length.xx

Other lengths available upon request
Mounting Options - M2 x 0.40 tapped holes ______________________________

TM2

or choose from Mounting Option Table _____________________________

see table

Lever Direction _______________________________________________________

-1

_______________________________________________________________

-2

Factory Preset clamping force when expanded to 7.63 (.300)
556N (125lbs)_____________________________________________________________

645N (145lbs) ___________________________________________________________

None _____________________________________________________________

[blank]

6.35 (.250)

Assembly Length (AL)

± 1.3 (.050)

2.67 (.105)

6.86

(.270)

max.

Capable of expansion

range of 6.86 (.270) to

8.26 (.325). Adjustment

required to an exact

dimension within this

range.

2.38 (.094) Hex

Socket Cap Per

ANSI/ASME B18.3

Assembly Length +26.4 (1.04) REF when fully relaxed and unadjusted.

Dimension will shorten by approximately 5.3 (.21) when adjusted.

33.15 (1.305)

1.5 (.06) REF

M/2 ± .13 (.005)

7.04 (.277)

M = Assembly Length

minus 48.26 (1.90) ± .13 (.005)

3.63 (1.43)

-1 Shown

-2 Opposite

CLAMPING FORCE DATA

CLAMPING FORCE ADJUSTMENT

PROCEDURE

Direct force of assembly is approximately

556N (125lbs), when adjusted per rec-

ommended procedure.

Lever-Lok is furnished unadjusted and will require

the use of the following procedure to achieve

proper clamping.

Direct force of assembly is affected ap-

proximately as follows: 26.7N (6lbs) per

each .025 (.001) variation of cold plate slot

width, or 169N (38lbs) per each full turn

of screw.

NOTE: Factory preset adjustment available on

request. (See part number code)
1. Fasten Lever-Lok to Board Module

Assembly

2. Insert Board Module Assembly into

slot in cold plate

3. Actuate lever to locked/closed position
4. Tighten screw on end of shaft until wedges

initially contact wall of cold plate slot, or

slight insertion extraction drag is felt

5. Additionally tighten screw

2 full turns.

DO NOT EXCEED TWO (2) TURNS

6. Lever-Lok is now ready to use

Note: Factory adjustment of clamping force available on request. See P and P2 suffix option in Part Number Code table.

Part Number Code Example:

L260-3.80TM2-1
Series L260 five piece lever actuated Card-Lok 96.52 (3.80) long with

black anodized finish, -1 lever direction and no factory preset clamping

load

MOUNTING METHOD TABLE

Code

Letter

Method

“TM2.5”

M2.5 x 0.45 tapped hole

Series L260 - “Card-Lok” Retainer (Lever-Lok)

“TM2”

M2 x 0.40 tapped hole

[blank]

2-56 tapped hole

Lever width .270
(6.86) Max

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

www.calmark.com • 800-854-7086

Part Number Code

Series LE260 Card-Lok Five Piece

LE260 - 3.80 T0 -1 P

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request

Mounting Options - 0-80 tapped holes ___________________________________

or choose from Mounting Option Table ______________________________

see table

Lever Direction _______________________________________________________

-1

_______________________________________________________________

-2

Factory Preset clamping force when expanded to 7.62 (.300)
556N (125lbs)_____________________________________________________________

645N (145lbs) ___________________________________________________________

None _____________________________________________________________

[blank]

CLAMPING FORCE ADJUSTMENT

CLAMPING FORCE DATA

PROCEDURE

Direct force of assembly is approximately 556N

(125lbs), when adjusted per recommended

procedure.

Lever-Lok furnished assembled with

spring stack preloaded but not adjusted.

Direct force of assembly is affected ap-

proximately as follows: 26.7N (6lbs) per

each .025 (.001) variation of cold plate slot

width, or 169N (38lbs) per each full turn

of screw.

1. Fasten Lever-Lok to Board Module

Assembly

2. Insert Board Module Assembly into slot in

cold plate

3. Actuate lever to locked/closed position

4. Tighten screw on end of shaft until wedges

initially contact wall of cold plate slot, or

slight insertion extraction drag is felt

5. Additionally tighten locknut two full turns.

DO NOT EXCEED TWO (2) TURNS.

6. Lever-Lok is now ready to use

NOTE: Factory adjustment of clamping

force available on request. See part

number code.

Part Number Code Example:

LE260-2.80TM2-1P2
Series LE260 five piece lever actuated Card-Lok with extractor feature,

71.12 (2.80) long with M2 x .40 tapped mounting holes, -1 lever direc-

tion and factory preset for 645N (145lbs) clamping force when expanded

to .300 DIM

MOUNTING METHOD TABLE

Code

Letter

Method

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series LE260 - “Card-Lok” Retainer (Extracting/Lever-Lok)

[blank]

2-56 tapped hole

“T0”

0-80 tapped hole

M/2 ± .13 (.005)

33.15 (1.305)

4.95 (.195) Ref.

M = Assembly Length

minus 48.26 (1.90) ± .13 (.005)

36.32 (1.43)

-1 Shown

-2 Opposite

13.39 (.527)

6.35 (.250)

Assembly Length

± 1.3 (.050)

Assembly Length + 16.5 (.65) when fully relaxed and unadjusted.

2.67 (.105)

Dimension will shorten by approximately 5.3 (.21) when adjusted.

6.86

(.270)

max.

Capable of expansion

range of 6.86 (.270) to

8.26 (.325). Adjustment

required to an exact

dimension within this

range.

2.38 (.094) Hex Socket

Cap Per ANSI/ASME B18.3

Lever width .270
(6.86) Max

Center hole location

Units: mm (in.)

Unless otherwise specifi ed:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

89104360

www.calmark.com • 800-854-7086

Part Number Code

Series 261 Card-Lok Three Piece

M V A 261 - 3.80 E H L K

Prefix options

Metric Screw Head M2.5 Hex Drive _______________

Standard Screw Head 3/32 Hex Drive _________

[blank]

Visual Indicator ______________________________

No Visual Indicator _______________________

[blank]

Black Anodize __________________________________

or choose from Finish Table____________________

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole _____________________________________

None_________________________________________________

[blank]

Mounting Options - Through mounting holes _________________________________

or choose from Mounting Option Table ______________________________

see table

Lock Element_______________________________________________________

None ______________________________________________________

[blank]

Captive Screw _________________________________________________________

None _________________________________________________________

[blank]

2.38 (.094) Hex Socket Cap Per ANSI/

ASME B18.3

M/2

± .13 (.005)

6.86 (.270) max.

4.6 (.18) REF

6.35

(.250)

20.32 (.800)

M = Assembly Length

minus 48.26 (1.90)

± .13 (.005)

Assembly Length ± 0.76 (.030)

7.6 (.30) max.

8.26 (.325) min.

8.9

(.35)

REF

5.8

(.23)

4.57

(.180)

Unlocked

Locked

OPTION PREFIX
Detail “V”

Provides visual lock

indication.

5.77

(.227)

OPTION SUFFIX

Detail “L”

Detail “K”

Prevents the unintentional disassem-

bly of screw from front wedge.

Lock element per
MIL-F-18240

slotted shaft

cut away view of front wedge

slotted screw

applied to thread of screw

Part Number Code Example:

MVA261-3.80H
Series 261 Card-Lok three piece 96.52 (3.80) long with M2.5 socket head screw,

visual indicator, black anodize finish and standard rivet mounting hole

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Ø1.73/1.85 (.068/.073) dia. through holes countersink 100°

x 1.50 (.060) deep

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 261 - “Card-Lok” Retainer (Cold Plate)

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Two holes standard. Extra hole
added with “E” option.

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 22 N-cm (2 in-lbs)

torque to assembly. See

application data on previous

sheet.

Center hole location
“E” option only

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

www.calmark.com • 800-854-7086

Part Number Code

Series 263 Card-Lok Five Piece

M V A 263 - 3.80 E H L K

Prefix options

Metric Screw Head M2.5 Hex Drive ______________

Standard Screw Head 3/32 Hex Drive

________

[blank]

Visual Indicator ____________________________

No Visual Indicator _____________________

[blank]

Black Anodize _______________________________

or choose from Finish Table _________________

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole _____________________________________

None _________________________________________________

[blank]

Mounting Options - through mounting holes_________________________________

or choose from Mounting Option Table ______________________________

see table

Lock Element _______________________________________________________

None_______________________________________________________

[blank]

Captive Screw __________________________________________________________

None __________________________________________________________

[blank]

8.9

(.35)

REF

5.8

(.23)

4.57

(.180)

Unlocked

Locked

Lock element per
MIL-F-18240
applied to thread of screw

slotted shaft

cut away view of front wedge

slotted screw

2.38 (.094) Hex Socket Cap Per

ANSI/ASME B18.3

M/2

± .13 (.005)

7.4 (.293) max.

4.6 (.18) REF

6.35

(.250)

20.32 (.800)

M = Assembly Length

minus 48.26 (1.90) ± .13 (.005)

Assembly Length ± 1.3 (.050)

7.6 (.30) max.

8.26 (.350) min.

OPTION PREFIX
Detail “V”

Provides visual lock

indication.

5.77

(.227)

OPTION SUFFIX

Detail “L”

Detail “K”

Prevents the unintentional disassem-

bly of screw from front wedge.

Part Number Code Example:

V263-3.80ET0K
Series 263 Card-Lok five piece 96.52 (3.80) long with M3 socket head screw,

visual indicator, gold chemical finish, 0-80 tapped mounting holes with an

additional center mounting hole and a captive screw option

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Ø1.73/1.85 (.068/.073) dia. through holes

countersink 100° x 1.50 (.060) deep

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 263 - “Card-Lok” Retainer (Cold Plate)

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Two holes standard. Extra hole
added with “E” option.

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 22 N-cm (2 in-lbs)

torque to assembly. See

application data on previous

sheet.

Center hole location
“E” option only

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

www.calmark.com • 800-854-7086

Part Number Code

Series 264 Card-Lok Three Piece

M V A 264 - 3.80 E H L K

Prefix options

Metric Screw Head M2.5 Hex Drive _______________

Standard Screw Head 3/32 Hex Drive _________

[blank]

Visual Indicator ______________________________

No Visual Indicator _______________________

[blank]

Black Anodize __________________________________

or choose from Finish Table____________________

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole _____________________________________

None _________________________________________________

[blank]

Mounting Options - holes for rivet mounting _________________________________

or choose from Mounting Option Table ______________________________

see table

Lock Element _______________________________________________________

None _______________________________________________________

[blank]

Captive Screw _________________________________________________________

None __________________________________________________________

[blank]

2.38 (.094) Hex Socket Cap Per

ANSI/ASME B18.3

M/2

± .13 (.005)

7.44 (.293) max.

4.6 (.18) REF

6.35

(.250)

20.32 (.800)

M = Assembly Length

minus 48.26 (1.90)

± .13 (.005)

Assembly Length +/- 1.76 (.030)

7.6 (.30) max.

8.89 (.350) min.

Part Number Code Example:

M264-2.80T2LK
Series 264 Card-Lok three piece 71.12 (2.80) long with .094-in. hex drive,

chemical film finish, 2-56 mounting holes, lock element and captive screw.

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Ø1.73/1.85 (.068/.073) dia. through holes countersink 100°

x 1.52 (.060) deep

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 264 - “Card-Lok” Retainer (Cold Plate)

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Two holes standard. Extra hole
added with “E” option.

8.9

(.35)

REF

5.8

(.23)

4.57

(.180)

Unlocked

Locked

Lock element per
MIL-F-18240
applied to thread of screw

slotted shaft

cut away view of front wedge

slotted screw

OPTION PREFIX
Detail “V”

Provides visual lock

indication.

5.77

(.227)

OPTION SUFFIX

Detail “L”

Detail “K”

Prevents the unintentional disassem-

bly of screw from front wedge.

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 22 N-cm (2 in-lbs)

torque to assembly. See

application data on previous

sheet.

Center hole location
“E” option only

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

www.calmark.com • 800-854-7086

Part Number Code

Series 265 Card-Lok Five Piece

M V A 265 - 3.80 E H L K

Prefix options

Metric Screw Head M2.5 Hex Drive

_____________

Standard Screw Head 3/32 Hex Drive

________

[blank]

Visual Indicator

____________________________

No Visual Indicator

_____________________

[blank]

Black Anodize

_______________________________

or choose from Finish Table

_________________

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

___________________

length.xx

Other lengths available upon request
Additional Center Mounting Hole

_____________________________________

None

_________________________________________________

[blank]

Mounting Options - through mounting holes

_________________________________

or choose from Mounting Option Table

______________________________

see table

Lock Element

_______________________________________________________

None______________________________________________________

[blank]

Captive Screw

__________________________________________________________

None

__________________________________________________________

[blank]

2.38 (.094) Hex Socket Cap Per ANSI/

ASME B18.3

± .13 (.005)

5.84 (.230) max.

4.6 (.18) REF

5.72

(.225)

M = Assembly Length minus

48.26 (1.90)

± .13 (.005)

20.32 (.800)

Assembly Length ± 1.3 (.050)

7.6 (.30) max.

7.37 (.290) min.

8.9

(.35)

REF

5.8

(.23)

4.57

(.180)

Unlocked

Locked

Lock element per

MIL-F-18240

applied to thread of screw

OPTION PREFIX
Detail “V”

Provides visual lock

indication.

5.77

(.227)

OPTION SUFFIX

Detail “L”

Detail “K”

Prevents the unintentional disassem-

bly of screw from front wedge.

Part Number Code Example:

M265-4.80H
Series 265 Card-Lok five piece 121.9 (4.80) long with M2.5 hex drive, gold chemical

film finish and standard rivet hole mounting

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Ø1.73/1.85 (.068/.073) dia. through holes countersink 100°

x 1.52 (.060) deep

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 265 - “Card-Lok” Retainer (Cold Plate)

Two holes standard. Extra hole
added with “E” option.

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 22 N-cm (2 in-lbs)

torque to assembly. See

application data on previous

sheet.

slotted shaft

cut away view of front wedge

slotted screw

Center hole location
“E” option only

Units: mm (in.)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of

± .010

www.calmark.com • 800-854-7086

Part Number Code

Series 266 Card-Lok Three Piece

Prefix options

M V A 266 - 3.80 E H L K

Metric Screw Head M2.5 Hex Drive

_______________

Standard Screw Head 3/32 Hex Drive

_________

[blank]

Visual Indicator

______________________________

No Visual Indicator

_______________________

[blank]

Black Anodize

__________________________________

choose from Finish Table

___________________

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

_________________

length.xx

Other lengths available upon request.
Additional Center Mounting Hole

_____________________________________

None

_________________________________________________

[blank]

Mounting Options - holes for rivet mounting

_________________________________

or choose from Mounting Option Table

______________________________

see table

Lock Element

_______________________________________________________

None

_______________________________________________________

[blank]

Captive Screw

_________________________________________________________

None

__________________________________________________________

[blank]

2.38 (.094) Hex Socket Cap Per

ANSI/ASME B18.3

M/2

± .13 (.005)

5.84 (.230)

max.

4.6 (.18) REF

5.72

(.225)

M = Assembly Length minus

48.26 (1.90) ± .13 (.005

20.32 (.800)

Assembly Length ± 0.76 (.030)

7.6 (.30) max.

7.37 (.290) min.

OPTION PREFIX
Detail “V”

Provides visual lock

indication.

OPTION SUFFIX

Detail “L”

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .25 (.010)

Part Number Code Example:

266-2.80T2K Series 266 three piece Card-Lok gold chemical film finish, 71.12

(2.80) long with 2-56 tapped mounting holes and captive screw feature

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Ø1.73/1.85 (.068/.073) dia. through holes countersink

100° x 1.52 (.060) deep

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 266 - “Card-Lok” Retainer (Cold Plate)

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 22 N-cm (2 in-lbs)

torque to assembly. See

application data on previous

sheet.

Two holes standard. Extra hole
added with “E” option.

Center hole location
“E” option only

4.57

(.180)

8.9 (.35)

REF

5.8

(.23)

Unlocked

Locked

Lock element per

MIL-F-18240

applied to thread of screw

5.77

(.227)

Detail “K”

Prevents the unintentional disassembly

of screw from front wedge.

slotted shaft

cut away view of front wedge

slotted screw

www.calmark.com • 800-854-7086

Part Number Code

Series 267 Card-Lok Five Piece

Prefix options

M V A 267 - 3.80 E H L K

Metric Screw Head M2.5 Hex Drive ______________

Standard Screw Head 3/32 Hex Drive ________

[blank]

Visual Indicator

________________________

____

No Visual Indicator

________________

_____

[blank]

Black Anodize

____________________________

____

or choose from Finish Table

__________

_______

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80).

_________________

length.xx

Other lengths available upon request.
Additional Center Mounting Hole

______________________________

_______

None

______________________________________________

___

[blank]

Mounting Options - holes for rivet mounting

___________________

_________

or choose from Mounting Option Table

______________________

________

see table

Lock Element

____________________________________________________

___

None

______________________________________________________

[blank]

Captive Screw

______________________________________________________

____

None

________________________________________________________

[blank]

8.9

(.35)

REF

5.8

(.23)

4.27

(.168)

Unlocked

Locked

Lock element per

MIL-F-18240
applied to thread of screw

slotted shaft

cut away view of front wedge

relieved screw

OPTION PREFIX
Detail “V”

Provides visual lock

indication.

OPTION SUFFIX

Detail “L”

4.88

(.192)

Detail “K”

Prevents the unintentional

disassembly of screw from

shaft

Part Number Code Example:

267-2.80T2K Series 267 five piece Card-Lok gold chemical film finish, 71.12
(2.80) long with 2-56 tapped mounting holes and captive screw feature

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3, Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Ø1.73/1.85 (.068/.073) dia. through holes

countersink 100° x 1.52 (.060) deep

“T0”

0-80 tapped hole

“T2”

2-56 tapped hole

“TM2”

M2 x 0.40 tapped hole

“TM2.5”

M2.5 x 0.45 tapped hole

Series 267 - “Card-Lok” Retainer (Narrow)

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 22 N-cm (2 in-lbs)

torque to assembly. See

application data on previous

sheet.

M = Assembly Length

minus 48.26 (1.90)

± .13 (.005)

Assembly Length ± 1.3 (.050)

M/2

± .13

(.005)

5.99 (.236) min.

5.00 (.197)

max.

6.35

(.250)

2.38 (.094) Hex Socket Cap

Per ANSI/ASME B18.3

7.6 (.30) max.

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

20.32

(.800)

4.6 (.18) REF

Center hole location

“E” option lonly

Two holes standard.

Extra hole added with “E” option.

89067677

www.calmark.com • 800-854-7086

Part Number Code

Series 280 Card-Lok Five Piece

Prefix options

M V A 280 - 3.80 E H L K

Metric Screw Head M3 Hex Drive

______________

Standard Screw Head 9/64 Hex Drive

_______

[blank]

Visual Indicator

____________________________

No Visual Indicator

_____________________

[blank]

Black Anodize

_______________________________

or choose from Finish Table

_________________

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80)

_________________

length.xx

Other lengths available upon request.
Additional Center Mounting Hole

_____________________________________

None

_________________________________________________

[blank]

Mounting Options - holes for rivet mounting

_________________________________

or choose from Mounting Option Table

______________________________

see table

Lock Element

_______________________________________________________

None

_______________________________________________________

[blank]

Captive Screw

__________________________________________________________

None

__________________________________________________________

[blank]

12.4

(.49)

REF

8.38

(.330)

6.86

(.270)

OPTION PREFIX
Detail “V”

Provides visual lock

indication.

OPTION SUFFIX

Detail “L”

8.89

(.350)

Detail “K”

Prevents the unintentional

disassembly of screw from shaft

Part Number Code Example:

A280-4.80HK
Series 280 Card-Lok five piece 121.9 (4.80) long with black anodize finish,

standard rivet mounting hole and captive screw option

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Ø3.40/3.53 (.0134/.139) dia. through holes

countersink 60° x 3.81 (.150) deep

“T4”

4-40 tapped hole

“TM3”

M3 x 0.50 tapped hole

Series 280 - “Card-Lok” Retainer (Cold Plate)

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 50 N-cm (4 in-lbs)

torque to assembly. See

application data on previous

sheet.

M = Assembly Length

minus 54.61 (2.45)

± .13 (.005)

Assembly Length ± 1.3 (.050)

M/2

± .13

(.005)

11.68 (.460) min.

9.65 (.380)

max.

9.27

(.365)

3.57 (.140) Hex Socket Cap

Per ANSI/ASME B18.3

11.2 (.44) max.

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

19.05

(.750)

6.1 (.24) REF

Two holes standard.

Extra hole added with “E” option.

Center hole location

“E” option lonly

89067682

Lock element per

MIL-F-18240

applied to thread of screw

slotted shaft

cut away view of front wedge

slotted screw

Unlocked

Locked

www.calmark.com • 800-854-7086

Part Number Code

Series 281 Card-Lok Three Piece

Prefix options

M V A 281 - 3.80 E H L K

Metric Screw Head M3 Hex Drive

________________

Standard Screw Head 9/64 Hex Drive

_________

[blank]

Visual Indicator

______________________________

No Visual Indicator

_______________________

[blank]

Black Anodize

__________________________________

or choose from Finish Table

___________________

see table

Suffix options

Assembly length in inches. Standard lengths range from

71.12 (2.80), 96.52 (3.80) and 121.9 (4.80)

_________________

length.xx

Other lengths available upon request.
Additional Center Mounting Hole

_____________________________________

None

_________________________________________________

[blank]

Mounting Options - holes for rivet mounting

_________________________________

or choose from Mounting Option Table

______________________________

see table

Lock Element

_______________________________________________________

None

_______________________________________________________

[blank]

Captive Screw

_________________________________________________________

None

_________________________________________________________

[blank]

12.4

(.49)

REF

8.38

(.330)

6.86

(.270)

Unlocked

Locked

Lock element per

MIL-F-18240
applied to thread of screw

slotted shaft

cut away view of front wedge

relieved screw

OPTION PREFIX
Detail “V”

Provides visual lock

indication.

OPTION SUFFIX

Detail “L”

8.89

(.350)

Detail “K”

Prevents the unintentional

disassembly of screw from shaft

Part Number Code Example:

281-2.80H
Series 281 Card-Lok three piece 71.12 (2.80) long with chemical film

finish and standard rivet mounting hole

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

MOUNTING METHOD TABLE

Code

Letter

Method

“H”

Ø3.40/3.53 (.0134/.139) dia. through holes

countersink 60° x 3.81 (.150) deep

“T4”

4-40 tapped hole

“TM3”

M3 x 0.50 tapped hole

Series 281 - “Card-Lok” Retainer (Cold Plate)

Provides prevailing torque

for resistance to loosening

from shock and vibration.

Adds 50 N-cm (4 in-lbs)

torque to assembly. See

application data on previous

sheet.

M = Assembly Length

minus 54.61 (2.150)

± .13 (.005)

Assembly Length

± 0.76 (.030)

M/2

± .13

(.005)

11.68 (.460) min.

9.65 (.380)

max.

9.27

(.365)

3.57 (.140) Hex Socket Cap

Per ANSI/ASME B18.3

11.2 (.44) max.

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

19.05

(.750)

6.1 (.24) REF

Center hole location

“E” option lonly

Two holes standard.

Extra hole added with “E” option.

89067695

www.calmark.com • 800-854-7086

Calmark offers the Series 227 and 228

Channel Mounted “Card-Lok”. This design

consists of three or five segment Card-Lok

retainer mounted in its own individual

chassis mountable heatsink channel.

FEATURES

• Self contained Card-Lok/Heatsink

Channel – Three or five segment Card-Lok

mounted in an individually mountable

heatsink channel

• Maximum Reliability – Screw-actuated

wedge action locks Plug-in Unit in place

• Maximum Thermal Transfer – Wedge

action design provides maximum contact

between thermal paths on Plug-in Unit

and the heat sinking surface

• Maximum Resistance to Shock & Vibration

– Wedge action design locks Plug-in Unit

in place to provide maximum resistance

to shock and vibration

• Zero Insertion & Extraction Forces –

Screw actuation provides zero insertion

and extraction force on Plug-in Unit

• Design Flexibility – Special lengths,

finishes or other design variations

available on request

Series 228 - “Channel-Lok” Retainer (cold plate)

MATERIALS

Material:

Aluminum alloy 6061-T6

per ASTM-B221 or

AMS-QQ-A-200/8

Finish:

See Finish Table

SCREW

Material:

Stainless Steel per ASTM-

A582

Finish:

Passivated per

Mil-S-5002

FLAT WASHERS,

RETAINING RING

& SPRING

Passivated Stainless Steel

WEIGHT

2.44g/cm (0.22 oz/in)

APPLICATION DATA

Recommended Torque 68 N-cm (6 in-lbs)

Series 227 - “Channel-Lok” Retainer (cold plate)

Series 227 & 228 - “Channel-Lok” Retainer (Cold Plate)

Wedge Bodies

Plug-in Unit

Spring

Channel

Screw

Retaining Ring

Alignment

Spring

Cold Plate

Series 228 with

Plug-in Unit

locked in place

Series 227

ready to accept

a Plug-in Unit

89066429

CHANNEL, BODIES &

WEDGES

www.calmark.com • 800-854-7086

Part Number Code

Series 227 Card-Lok Three Piece

Series 228 Card-Lok Five Piece

M A 228 R - 5.00 T4

Prefix options

Metric Screw Head M2.5 Hex Drive

_________________

Standard Screw Head 3/32 Hex Drive ___

[blank]

Black Anodize

__________________________________

or choose from Finish Table

___________________

see table

Suffix options

Right or

_______________________________________________

Left

_________________________________________________

Series 227

Standard lengths from 76.2 (3.00) to 165.1 (6.50)

in 12.7 (.500) increments

Series 228

Standard lengths from 101.5 (4.00) to 406.4 (16.00)

in 12.7 (.500) increments

______________________________________

length.xx

Mounting Options

4-40 tapped mounting holes

______________________________________________

M3 tapped mounting holes

_____________________________________________

TM3

Part Number Code Example:

227R-6.50T4
Series 227 Channel-Lok three piece 165.1 (6.50) long with chemical film finish

and 4-40 tapped mounting holes; this assembly is for the right side
A228L-9.50TM3
Series 228 Channel-Lok five piece 241.3 (9.50) long with black anodize finish

and M3 tapped holes; this assembly is for the left side

FINISH TABLE

Code

Letter

Finish

[blank]

Chemical Film per Mil-DTL-5541 Class 1A, Type 1, Gold

“R”

Chemical Film per Mil-DTL-5541 Class 3,

Type II, Clear

“A”

Black Anodize per Mil-A-8625 Type II, Class 2

“HA”

Hard Black Anodize per Mil-A-8625 Type III, Class 2

“EN”

Electroless Nickel per Mil-C-26074 Class 4, Grade B, Bright

Series 228

Length 114.3 (4.50)

127.0 (5.00)

139.7 (5.50)

152.4 (6.00)

165.1 (6.50)

177.8 (7.00)

190.5 (7.50)

203.2 (8.00)

215.9 (8.50)

228.6 (9.00)

241.3 (9.50)

254.0 (10.00)

44.45 (1.750)

50.80 (2.000)

57.15 (2.250)

63.50 (2.500)

69.85 (2.750)

50.80 (2.000)

57.15 (2.250)

63.50 (2.500)

69.85 (2.750)

76.20 (3.000)

N/A

101.60 (4.000)

107.95 (4.250)

120.65 (4.750)

127.00 (5.000)

139.70 (5.500)

146.05 (5.750)

152.40 (6.000)

Series 227

Length 76.2 (3.00)

88.9 (3.50)

101.6 (4.00)

114.3 (4.50)

127.0 (5.00)

139.7 (5.50)

152.4 (6.00)

165.1 (6.50)

25.4 0 (1.000)

31.75 (1.250)

38.10 (1.500)

127.00 (1.750)

50.80 (2.000)

57.15 (2.250)

63.50 (2.500)

69.85 (2.750)

50.80 (2.000)

63.50 (2.500)

76.20 (3.000)

88.90 (3.500)

101.60 (4.000)

114.30 (4.500)

127.00 (5.000)

139.70 (5.500)

Length 266.7 (10.50)

279.4 (11.00)

304.8 (11.50)

317.5 (12.00)

330.2 (12.50)

342.9 (13.00)

355.6 (13.50)

368.3 (14.00)

368.3 (14.50)

381.0 (15.00)

393.7 (15.50)

400.4 (16.00)

82.55 (3.250)

88.90 (3.500)

95.25 (3.750)

101.60 (4.000)

107.95 (4.250)

114.30 (4.500)

120.65 (4.750)

127.00 (5.000)

133.35 (5.250)

139.70 (5.500)

146.05 (5.750)

152.40 (6.000)

158.75 (6.250)

165.10 (6.500)

171.45 (6.750)

177.80 (7.000)

184.15 (7.250)

190.50 (7.500)

196.85 (7.750)

203.20 (8.000)

209.55 (8.250)

215.90 (8.500)

222.25 (8.750)

228.60 (9.000)

Series 227 & 228 - “Channel-Lok” Retainer (Cold Plate)

3.00 ± .10

(.118 ± .004)

M ± .13 (.005) = Length minus 25.4 (1.00)

M/2 ± .13 (.005)

8.89 (.350)

max.

12.57+0/-.18

(.495 +0/-.007)

2.38 (.094) Hex Socket Cap

Per ANSI/ASME B18.3

Assembly Length ± .050

Single center wedge body used for Series 227.

Series 228 uses three center body sections

Spring

(Allows captive

screw to automatically

engage and disengage

rear wedge)

Retaining Ring

Front Wedge

Flatwashers

1.55 ± .12

(.061 ± .005)

3.05 ± .076

(.120 ± .003)

3.8 (.15)

± .13 (.005)

Right Hand Assembly - shown

Left Hand Assembly - opposite

4.32 ± .12

(.170 ± .005)

4.32 ± .12

(.170 ± .005)

Series 227 &

Series 228

165.1 (6.5)

and shorter

Series 228

177.8 (7.0)

and longer

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

Note: Each piece has a tolerance of ± .010

Secures boards

ranging from

1.14 (.045) to

2.62 (.103)

Rear

Wedge

12.70

(.500)

89066430

www.calmark.com • 800-854-7086

165/166 Material:

.41 (.016) thick Alloy 10

Beryllium Copper.

Cond. “AT” per Mil-C-81021

Finish:

See Part No. Code

SPRING RATE

56.0 N/cm (32 lbs/in) of

deflection per spring finger

WEIGHT

.48g/cm (.043oz/in)

Calmark offers the Series 125/126 Card

Retainer as the economical approach

to protecting your Printed Circuit Board

in shock and vibration applications. For

those applications that require shock and

vibration protection and heat sinking and

grounding, the Series 165/166 may be the

answer to your problem. The Series 125/126

is made from rugged stainless steel while

the Series 165/166 is made from Alloy 10

BeCu for exceptional thermal and electrical

conductivity. These Retainers conform to

DSCC 85034.

125/126 Material:

.41 (.016) thick Stainless Steel Type

301, Cond. 1/2 H, ASTM -A240

Finish:

Passivate per MIL -S-5002

SPRING RATE

60.4N/cm (34.5lbs/in) of

deflection per spring finger

WEIGHT

.4g/cm (.036oz/inch)

Series 125/126/165/166 retainers

Part Number Code

Series

125, 126, 165, 166

PCB Thickness

125 -06 -3.25 N

1.6 (.063)

____________________

2.4 (.094)

____________________

Length

31.75 (1.25) to 311.15 (12.25)

_______

length.xx

in 25.4 (1.00) increments

Other lengths available on request

Finish

(165/166 only)

Nickel plate

_____________________________

or choose from Finish Table

Part Number Code Example:

125-06-4.25
Series 125 passivated stainless steel, 107.95

(4.25) long designed for 1.6 (.063) thick

printed circuit boards

FINISH TABLE

Code

Letter

Finish

[blank]

125/126: passivated

165/166: no finish

For 165/166 only

“T”

Bright Tin plate per Mil-T-10727

.005 (.0002) min.

“N”

Nickel plate per QQ-N-290 Cl. 1, Gr. F

“ZN”

Zinc plate per ASTM-B633 Type III (clear), SC1

“EN”

Electroless nickel plate per Mil-C-26074 Cl. 1 Gr. B

Dash

No.

PCB

Thickness

B Dimension

+0.38 (.015)

\-0.0 (.000)

G Dimension

+0.0 (.00)

\-0.80 (.03)

-06

1.6 (1/16)

1.91 (.075)

1.14 (.045)

-09

2.4 (3/32)

2.67 (.105)

1.91 (.075)

Series 125/126 and 165/166 Retainers

Mounting holes are offset

from card path and occur

every inch, offering a choice

of mounting patterns

Independent sections

maximize contact with

printed circuit card

Turned in tabs and rigid

wall limit card excursion

under dynamic loading

Spring fingers hold card

against rigid side

providing dampening

under shock and vibration

Coined edges allow

smooth insertion and

extraction without

damage to card

89066485

Printed Circuit Board

4.32 ± .13

(.170 ± .005)

Recommended

Mounting Dim

Break sharp edges.

.64 (.025) R

(inside) Typ.

Series 125/126 = 3.18 (.125)

Series 165/166 = 4.19 (.165)

18.3 (.72)

Typ.

7.1 (.28) Typ.

(see table)

Series 125/126 = 2.54 (.100)

Series 165/166 = 3.56 (.140)

4.32 ± .13

(.170 ± .005)

2.44 ± .05 (.096 ± .002) Dia.Typ.

25.40 ± .13

(1.000 ± .005)

Tol. Noncum.

6.73

(.265)

(.03)

Typ.

3.18

(.125)

Typ.

(see table)

19.05 (.750) Typ.

4.19 (.165)

Typ.

8.18 +.25/-.50

(.322 +.010/-.020)

125/165 Shown

126/166 Opposite

Length

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5 (.xxx ± .010, .xx ± .02)

89066486

www.calmark.com • 800-854-7086

Series NW125/NW126/NW165/NW166 retainers

Part Number Code

Series

NW125, NW126, NW165, NW166

NW125 -06 -3.25 N

PCB Thickness

1.6 (.063)

_______________________

2.4 (.094)

_______________________

Length

31.75 (1.25) to 311.15 (12.25)

________

length.xx

in 25.4 (1.00) increments.

Other lengths available on reques

Finish

(NW165/NW166 only)

Nickel plate

______________________________

or choose from Finish Table

FINISH TABLE

Code

Letter

Finish

[blank]

NW125/NW126: passivated

NW165/NW166: no finish

For NW165/NW166 only

“T”

Bright Tin plate per Mil-T-10727

.005 (.0002) min.

“N”

Nickel plate per QQ-N-290 Cl. 1, Gr. F

“ZN”

Zinc plate per ASTM-B633 Type III (clear), SC1

“EN”

Electroless nickel plate per Mil-C-26074 Cl. 1 Gr. B

Dash

No.

PCB

Thickness

B Dimension

+0.38 (.015)

\-0.0 (.000)

G Dimension

+0.0 (.00)

\-0.80 (.03)

-06

1.6 (1/16)

2.41 (.095)

3.94 (.155)

-09

2.4 (3/32)

1.65 (.065)

3.18 (.125)

Series NW125/NW126 and NW165/NW166 - Retainers

NW165/NW166

Material:

0.41 (.016) thick Alloy 10 Beryllium

Copper

Cond. “AT” per Mil-C-81021

Finish:

See Part No. Code

SPRING RATE

56.0 N/cm (32 lbs/in) of deflection per

spring finger

WEIGHT

.38 g/cm (.034 oz/in)

Calmark offers the Series NW125/NW126

and NW165/NW166 Card Retainers for

cold plate heat exchanger applications.

These Retainers provide the necessary

spring pressure to insure positive contact

between the thermal path on the

Printed Circuit Board and the cold plate

surface. The NW165/NW166 provides the

additional benefit of improved thermal

characteristics. These retainers conform to

the DSCC 85034 specification.

NW125/126

Material:

0.41 (.016) thick Stainless Steel

Type 301, Cond. 1/2 H, ASTM -A240

Finish:

Passivate per MIL -S-5002

WEIGHT

.32 g/cm (.029 oz/inch)

SPRING RATE

60.4 N/cm (34.5 lbs/in) of deflection

per spring finger

Mounting holes are offset

from card path and occur

every inch, offering a choice

of mounting patterns

Turned in tabs and rigid

wall limit card excursion

under dynamic loading

Spring fingers hold

printed circuit board

against rigid side for

thermal and electrical

contact. It also provides

dampening under

shock and vibration.

Coined edges allow

smooth insertion and

extraction without

damage to card

89066491

Length

Series NW125/NW126 = 3.18 (.125)

Series NW165/1NW66 = 4.19 (.165)

(see table)

19.05 (.750) Typ.

4.19 (.165) Typ.

25.40 ± .13

(1.000 ± .005)

Tol. Noncum.

3.18

(.125)

Typ.

Series NW125/NW126 = 2.54 (.100)

Series NW165/NW166 = 3.56 (.140)

3.68 ± .13

(.145 ± .005)

2.44 ± .05 (.096 ± .002) Dia. Typ.

Units: mm (in)

.xx=±.25, .x=±.5

(.xxx=±.010, .xx=±.02)

NW125/NW165 Shown

NW126/NW166 Opposite

6.50

(.250)

(see table)

Printed Circuit Board

4.32 ± .13

(.170 ± .005)

Recommended

Mounting Dim

Break sharp edges.

Cold wall

89066492

Part Number Code Example:

NW165-09-4.25EN
Series NW165 BeCu with Electroless

Nickel finish,

107.95 (4.25) long designed for 2.4

(.094) thick

printed circuit boards

www.calmark.com • 800-854-7086

Series 115-287 - Nylon Guides

Web Length

73.03 ± .13

(2.875 ± .005)

Square Corners

Web Width

5.08 ± 0.13

(.200 ± .005)

Calmark offers the Series 115-287 Card

Guide, a most unique design in PC card

guides. The Series 115-287 Card Guide

allows users of louver or lance type card

guides to easily change to an insulated

nylon card guide with a minimum

modification of strength and air flow.

FEATURES

• Available for 1.61 (.063) and 2.43 (.094)

thick printed circuit boards

•  Unique snap-on design
•  Secure and easy installation
•  Wide lead-in for easy card entry
•  No mounting hardware required
•  Metal web support provides

strength and rigidity

•  Narrow profile for excellent airflow
•  No mounting holes required
•  Economical

MATERIAL

Series 115-287 - Nylon Guide

Part No.

115-287
115-287-3

Gap Dimension

1.93 (.076)
2.69 (.106)

8.89 (.350)

Gap ± .013

(.005) see table

5.21 ± .13

(.205 ± .005)

7.6 (.30)

5.21 (.205)

45° Typ.

4.8

(.19)

29.2 (1.15) 13.5 (.53)

82.6 (3.25)

72.90 ± .13 (2.870 ± .005)

1.27 (.050)

2.41 ± .13

(.095 ± .005)

4.8

(.19)

Units: mm (in)

.xx=±.25, .x=±.5

(.xxx=±.010, .xx=±.02)

Nylon 6/6. Meets UL 94V-2.

Self extinguishing to flame.

May be used at 121°C (250°F)

continuously. Resistant to

alkalies, weak acids, and

common solvents.

COLOR

Standard color is natural (white).

Additional colors are special

order. Contact factory for

availability.

APPLICATION DATA

1. Slip front end of guide on first.
2. Bow guide and tuck back under.
Fits up to 1.65 (.065) thick material.

Part Number Code

Series 115-287

Suffix options

For board thickness 1.5 (.06)

____________

[blank]

For board thickness 2.4 (.093)

-3

For color options other than standard color white, add suffix:

White

____________________________________

[blank]

For other colors add BLK, BRN, ORG, YEL, GRN, BLU

_______________

XXX

(Colors other than White will require special order and part number)

13.5 (.53)

3.05

(.120)

4.75 (.187)

1.65 ± .05

(.065 ± .002)

.76 ± .05

(.030 ± .002)

www.calmark.com • 800-854-7086

Calmark offers the Series 120 and C120

snap-in PCB Nylon Card Guide.

120 FEATURES

• Easy and secure snap-in design

• Extra deep guide

• Wide lead-in for easy card entry

• No mounting hardware required

• Narrow profile for excellent airflow

• Mid-span mounting point option for

greater stability

• Available in 1.6 (.063) and 2.4 (.094)

board gap widths

• Economical

Series C120

includes the above

features Plus:
• Molded in conductive material

• Provides surface resistivity of 10

ohms

per square

MATERIAL

Series 120:

Nylon 6/6 or 6.

Meets UL94V-2 self-extinguishing to

flame or UL94V-0 (see part number

configuration). May be used at 121°C

(250°F) continuously.

Resistant to alkalies, weak acids

and common solvents.

Series C120:

10% Graphite Filled

Polycarbonate. Meets UL94V-2.

COLOR

Series 120:

Standard color is natural

(white). For other colors append BLK,

BRN, RED, ORG, YEL, GRN, BLU, VIO or

GRY to part number.

Series C120:

available in black only.

Standard: 1.93 ± .13 (.076 ± .005)

for -3: 2.69 ± .13 (.106 ± .005)

6.4

(.25)

1.19 ± .08

(.047 ± .003)

3.18

(.125)

3.18 ± .13

(.125 ± .005)

3.35 ± .05

(.132 ± .002)

Dia.

6.4 (.25) Typ.

Length ± .8 (.03)

(Length - 12.7 (.500))/2 ± .8 (.03)

if applicable. See table

Length - 12.7 (.500) ± .8 (.03)

Units: mm (in) .xx=±.25, .x=±.5

(.xxx=±.010, .xx=±.02)

*Indicates presence of a mid-mounting post

For 2.4 (.094) thick pcb, include a “-3” suffix to part number

For UL94V-0 option add VO” prefix to part number

Part No.

Length

Color add suffix (standard is white)

120-400

101.6 (4.00)

BLK, BRN, ORG, YEL, GRN, BLU

120-600

152.4 (6.00)

BLK, BRN, ORG, YEL, GRN, BLU

120-700

177.8 (7.00)* BLK, BRN, ORG, YEL, GRN, BLU

120-700X

177.8 (7.00)

BLK, BRN, ORG, YEL, GRN, BLU

120-850

215.9 (8.50)* BLK, BRN, ORG, YEL, GRN, BLU

120-850X

215.9 (8.50)

BLK, BRN, ORG, YEL, GRN, BLU

120-950

215.9 (9.50)* BLK, BRN, ORG, YEL, GRN, BLU

C120-400

102.1 (4.02)

BLK, BRN, ORG, YEL, GRN, BLU

C120-600

153.2 (6.03)

BLK, BRN, ORG, YEL, GRN, BLU

C120-700

178.8 (7.04)* BLK, BRN, ORG, YEL, GRN, BLU

C120-700X

178.8 (7.04)

BLK, BRN, ORG, YEL, GRN, BLU

C120-850

216.9 (8.54)* BLK, BRN, ORG, YEL, GRN, BLU

C120-850X

216.9 (8.54)

BLK, BRN, ORG, YEL, GRN, BLU

C120-950

242.6 (9.55)

BLK, BRN, ORG, YEL, GRN, BLU

Series 120 and C120 - Nylon Guides

Series 120 - Nylon Guide

Series C120 - Nylon Guide (conductive)

Rear (and Center) Mounting Slots:

Series 120 & C120

3.02 ± .13 (.120 ± .005) x 5.54 (.218)

Front Mounting Hole:

Series 120

3.25 +.03/-.08 (.128 +.001/-.003) Dia.

Series C120

3.20 +.03/-.08 (.126 +.001/-.003) Dia.

INSTALLATION DATA

Snap-in with sharp impact.

No special installation tools

required. Fits up to

1.91 (.075) thick material.

8909006

(Colors other than White will require special order and part number)

www.calmark.com • 800-854-7086

Nylon Extractors

Assembly Pin

Pin protrusion of approx. .38
(.015) seeks hole in PCB

Calmark offers Card Extractors for efficient

extraction of Printed Circuit Board from

connectors and the Series 107 Card Inserter-

Extractor for efficient insertion and extraction

of Printed Circuit Board in high density

connector contact and multiple connector

applications.

FEATURES

• Lever action for safe easy card extraction
• Ample gripping and pushing surfaces for

extracting and inserting card

•  Available in colors for coding
•  Generous area for hot stamp marking
•  Exact replacement for other manufacturers

MATERIALS

All Series 107 nylon extractors are molded in

Glass Filled (30%) 6/6 or Type 6 Nylon. See

table for flammability ratings. UL94-V0 parts

are self extinguishing to flame.
May be used at 121°C (250°F) continuously.

Resistant to alkalies, weak acids, and common

solvents.

ROLL PINS

•

2.38 (.094) dia x 6.35 (.250) long

Series 107, 107-10, 107-20, 107-20-3,

107-70, 107-70-3

• 2.38 (.094) dia x 7.95 (.313) long

Series 107-3, 107-10-3, 107-70-4

COLOR

Other colors available; see part number

code. Series 107 standard color is black.

For standard colors, a color suffix is not

necessary.

HOT STAMPING

Hot stamp marking service is available.

Please contact an Application Engineer

with your requirements.

SERIES P - PRE-STARTED

ASSEMBLY PIN

Calmark offers any of our extractors and

inserter-extractors with the option of

Pre-Started Assembly Pin.

Series

Part Number

Feature

Board Thickness

Standard

Color

UL 94

Mechanical

Advantage

Figures

103

E D

1.6 (.063)

natural

V-2

3:1

2/A

V103

1.6 (.063)

natural

V-0

3:1

2/A

107

I E D

1.6 (.063)

black

V-0

4.5:1

1/C

107-3

I E D

2.4 (.093)/3.2 (.125)

black

V-0

4.5:1

1/C

107-10

I E D

1.6 (.063)

black

V-0

3.3:1

2/C

107-10-3

I E D

2.4 (.093)

black

V-0

3.3:1

2/C

107-20

I E L

1.6 (.063)

black

V-2

4.5:1

3/D

V0107-20

I E L

1.6 (.063)

black

V-0

4.5:1

3/D

107-20-3

I E L

2.4 (.093)

black

V-2

4.5:1

3/D

V0107-20-3

I E L

2.4 (.093)

black

V-0

4.5:1

3/D

107-70

I E L

1.6 (.063)

black

V-0*

4.5:1

4/D

107-70-3

I E L

2.4 (.093)

black

V-0*

4.5:1

4/D

107-70-4

I E L

3.2 (.125)

black

V-0*

4.5:1

4/D

Feature: I = Inserter E = Extractor L = Latching D = meets DSCC 83023

For Pre-start pin feature, add “P” prefix to part number

*Main handle portion is UL-94V0, but latch is UL94-V2

Add suffix WHT for natural color. Standard colors are natural or black. Contact factory for availability of other colors.

Series 103-107 Nylon Extractors

FEATURES

• Faster and easier installation of extractor

to PC card

• Eliminates need for special tools or

equipment and set-up time

• Eliminates loss of loose assembly pins

www.calmark.com • 800-854-7086

Provides insertion and extraction travel of 8.9 (.35) min.

APPLICATION DATA

Two inserter or inserter-

extractors are recommended per

printed circuit board taller than

127 (5) in height.

FIG. A

FIG. B

Nominal position of card edge when seated

inconnector. The Inserter-Extractor will allow 1.3

(.05) overtravel for tolerance take-up.

2.77

(.109)

2.77

(.109)

2.77

(.109)

6.35

(.250)

6.35

(.250)

6.35

(.250)

1.5 (.06)Ref.

7.24 ± .38

(.285 ± .015)

18.5 (.73)

Card Guide

Surface

9.1

(.36)

1.5 (.06)max.

6.4 (.250)

x 45°

Chamfer

6.35

(.250)

6.1 (.24)min.

6.35

(.250)

6.35

(.250)

FIG. C

Detail of Actuating Surfaces

Required on Top and Bottom Guide Plates

FIG. 1

FIG. 2

FIG. 4

12.7

(.500)

11.05

(.435)

50.8

(2.00)

3.96

(.156) R

*8.89 (.350)

for 2.4 (.094)

and 3.2 (.125)

thick boards

12.06

(.475)

7.37*

(.290)

50.8

(2.00)

5.6

(.22)

3.96

(.156) R

12.06

(.475)

7.37

(.290)

1.6

(0.7)

11.05

(.435)

38.1

(1.50)

3.96

(.156) R

*8.89 (.350)

for 2.4 (.094)

and 3.2 (.125)

thick boards

12.06

(.475)

7.37*

(.290)

22.35(.880)

47.5

(1.87)

3.96

(.156) R

12.06

(.475)

11.05

(.435 )

7.37*

(.290)

*8.89 (.350)

for 3.2 (.125)

thick boards

2.38

(.094)

Dia.

22.86±.13

(.900 ± .005)

2.28 ±.13

(.090 ±005)

6.35

(.250)

18.5 (.73)

9.1

(.36)

6.35

(.250)

2.77

(.109)

Dia.

FIG. D

1.5 (.06)

7.24 ±.38

(.285 ± .015)

Card Guide

Surface

1.5 (.06) max.

6.1 (.24) min.

Provides insertion and extraction travel of 8.9 (.35) min.

Nominal position of card edge when seated

inconnector. The Inserter-Extractor will allow 1.3

(.05) overtravel for tolerance take-up.

Series 103 to 107 - Nylon Extractors

FIG. 3

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

www.calmark.com • 800-854-7086

Series 107-50 - Inserter/Extractor (Aluminum)

Calmark offers the Series 107 Aluminum

Inserter-Extractor for safe and easy

insertion and extraction of printed circuit

boards in the most severe applications.

This product series offer a wide range of

inserter-extractor with varying features

from mechanical advantage ratios, color,

board thickness, etc. If you don’t see one

here that meets your requirements, please

contact our Applications Engineers with

your specification.

FEATURES

• “Ultra strong” lever action design

overcomes insertion and extraction

forces of highest possible limits

• Widths from 7.37 (.290) to 7.92 (.312)

for printed circuit boards ranging from

1.6 (.063) to 3.2 (.125) thick

• Actuates from a simple “U” channel form
• Mounting detail on card retrofits other

industry standards

• Available in black anodize or clear

chemical film

• Generous area for identification

markings

• Strong and Ultra-strong lever action

overcome high insertion and extraction

forces

• 107-73 and 107-75 offers a positive

locking feature

MATERIALS/FINISH
EXTRACTOR

Aluminum alloy 6061-T6. Black anodize

per Mil-A-8625, Type II Cl. 2. or Clear

chemical film per Mil-5541 Cl 3 for a

conductive finish. Other anodize colors

or a gold chemical film also available.

Please contact an Application Engineer

with your requirements.

ROLL PIN

Stainless steel, 2.38 (.094) x 6.35 (.250)

[except all Series 107-35 use 7.95 (.313)

long]. Roll pins are furnished with each

inserter-extractor. [Series 107-73 and

107-75, two roll pins]

Series

Feature

Board Thickness

Standard

Color

Mechanical

Advantage

Figures

107-35

I E

1.6 (.063)

black

5.5:1

1/A

C107-35

I E

1.6 (.063)

clear

5.5:1

1/A

107-35-3

I E

2.4 (.093)

black

5.5:1

1/A

C107-35-3

I E

2.4 (.093)

clear

5.5:1

1/A

107-35-4

I E

3.2 (.125)

black

5.5:1

1/A

C107-35-4

I E

3.2 (.125)

clear

5.5:1

1/A

107-50

I E

1.6 (.063)

black

4.5:1

2/B

C107-50

I E

1.6 (.063)

clear

4.5:1

2/B

107-50-3

I E

2.4 (.093)

black

4.5:1

2/B

C107-50-3

I E

2.4 (.093)

clear

4.5:1

2/B

107-50-4

I E

3.2 (.125)

black

4.5:1

2/B

C107-50-4

I E

3.2 (.125)

clear

4.5:1

2/B

107-51

I E

1.6 (.063)

black

3.3:1

3/B

C107-51

I E

1.6 (.063)

clear

3.3:1

3/B

107-51-3

I E

2.4 (.093)

black

3.3:1

3/B

C107-51-3

I E

2.4 (.093)

clear

3.3:1

3/B

107-51-4

I E

3.2 (.125)

black

3.3:1

3/B

C107-51-4

I E

3.2 (.125)

clear

3.3:1

3/B

107-55

I E

1.6 (.063)

black

8:1

4/B

C107-55

I E

1.6 (.063)

clear

8:1

4/B

107-55-3

I E

2.4 (.093)

black

8:1

4/B

C107-55-3

I E

2.4 (.093)

clear

8:1

4/B

107-55-4

I E

3.2 (.125)

black

8:1

4/B

C107-55-4

I E

3.2 (.125)

clear

8:1

4/B

107-73

I E L

1.6 (.063)

black

4.2:1

5/C

C107-73

I E L

1.6 (.063)

clear

4.2:1

5/C

107-73-3

I E L

2.4 (.093)

black

4.2:1

5/C

C107-73-3

I E L

2.4 (.093)

clear

4.2:1

5/C

107-73-4

I E L

3.2 (.125)

black

4.2:1

5/C

C107-73-4

I E L

3.2 (.125)

clear

4.2:1

5/C

107-75

I E L

1.6 (.063)

black

7:1

6/C

C107-75

I E L

1.6 (.063)

clear

7:1

6/C

107-75-3

I E L

2.4 (.093)

black

7:1

6/C

C107-75-3

I E L

2.4 (.093)

clear

7:1

6/C

107-75-4

I E L

3.2 (.125)

black

7:1

6/C

C107-75-4

I E L

3.2 (.125)

clear

7:1

6/C

Feature: I = Inserter E = Extractor L = Latching

For Pre-start pin feature, add “P” prefix to part number

Series 107 Aluminum Inserter - Extractors

www.calmark.com • 800-854-7086

2.77

(.109)

Dia.

6.35

(.250)

18.5 (.73)

9.1

(.36)

6.35

(.250)

1.5 (.06)

7.24 ±.38

(.285 ± .015)

Card Guide

Surface

1.5 (.06)max.

6.1 (.24)min.

Detail of Actuating Surfaces

Required on Top and Bottom Guide Plates

FIG. B

Provides insertion andextractiontravel of 8.9 (.35) min.

Nominal position of card edge when seated

inconnector. The Inserter-Extractor will allow 1.3

(.05) overtravel for tolerance take-up.

Provides insertion and extraction travel of 7.6 (.30) min.

Nominal position of card edge when seated

inconnector. The Inserter-Extractor will allow .76

(.03) overtravel for tolerance take-up.

APPLICATION DATA

Two inserter or inserter-extractors are recommended per printed circuit

board taller than 127 (5) in height.

17.8

(.70)

7.87

(.310)

1.02 (.040) Ref

Card Guide

9.4

(.37)

Surface

4.83 ± .25(.190 ± .010)

4.57 (.180)

2.36

(.093)

Dia.

.8(.03) max.

4.3 (.17)min.

Detail of Actuating Surfaces

Required on Top and Bottom Guide Plates

FIG. A

11.18

(.440)

9.91

(.390)

43.2

(1.70)

3.96

(.156) R

8.26

(.325)

FIG. 1

7.92

(.312)

22.4 (.88)

47.5

(1.87)

50.8

(2.00)

REF

12.06

(.475)

12.7 (.50)

7.37

(.290)

22.4 (.88)

82.5

(3.25)

12.06

(.475)

12.7 (.50)

7.37

(.290)

FIG. 6

12.7

(.50)

50.8

(2.00)

3.96

(.156) R

12.06

(.475)

FIG. 2

7.37

(.290)

12.7

(.50)

3.96

(.156) R

38.1

(1.50)

12.06

(.475)

7.37

(.290)

12.7

(.50)

88.9

(3.50)

12.06

(.475)

7.37

(.290)

FIG. 4

FIG. 3

FIG. 5

22.86±.13

(.900 ± .005)

2.38 (.094) Dia.

2.29 ± .13

(.090 ± .005)

6.35

(.250)

1.5 (.06)

18.5 (.73)

Card Guide

Surface

9.1

(.36)

1.5 (.06)max.

6.1 (.24) min.

6.35

(.250)

2.77

(.109)

Dia.

Detail of Actuating Surfaces

Required on Top and Bottom Guide Plates

FIG. C

7.24 ±.38

(.285 ± .015)

Provides insertion and extraction travel of 8.9 (.35) min.

Nominal position of card edge when seated

inconnector. The Inserter-Extractor will allow 1.3

(.05) overtravel for tolerance take-up.

Series 107 Aluminum Inserter - Extractors

2.5 (.10)

x 45° min.

Chamfer

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

www.calmark.com • 800-854-7086

Series 109 - Extractor (Card-Lok Compatible)

Part Number Code

Series 109 Extractor

Prefix options

P F 109 CR -3 R -BLK -SED

Prestarted pin option ________________

Pin kitted with extractor _________

[blank]

Flat Style Handle ________________________

Easy Grasp Handle__________________

[blank]

Suffix options

Material

.063” thk. Aluminum Alloy 5052-H2 _____________

[blank]

.063” thk. Stainless Steel Type 304 __________________

Board Thickness
.063 (1.6) _______________________________________

[blank]

.093 (2.4) ___________________________________________

-3

.125 (3.2) ___________________________________________

-4

Left or Right Orientation

Left ___________________________________

Right__________________________________

Finish

Chem Film Gold ___________________________________________

[blank]

Or choose from finish table
ESD silkscreen ______________________________________________________

SED

No ESD silkscreen _________________________________________________

[blank]

6.9

(.27)

38.1

(1.50)

3.0

(.12)

25.4

(1.00)

9.14

(.360)

2.39 +.05 \ -.02

(.094 +.002 \ -.001)

Gap

(see table)

2.3 (.09)

Standard

Easy Grasp Style

6.4

(.25)

9.4

(.37)

2.77

(.109)

Dia.

Calmark offers the Series 109 narrow profile

aluminum Card Extractor for safe and

efficient extraction of Printed Circuit Board

with limited available space. Single-side

actuating foot design provides clearance

for use on boards with “Card-Lok” clamping

retainers. The Series 109 meets the

requirements of DSCC 84191.

FEATURES

• Lever action provides mechanical

advantage for efficient insertion and

extraction of printed circuit board

• Meets requirements of DSCC 84191
• Narrow profile requires minimum board

space

• Single-side actuating foot provides

clearance for use with “Card-Lok”

clamping retainers

• Strong aluminum or stainless material
• Available in colored finish for coding

MATERIALS/FINISH
EXTRACTOR

.063 thick Aluminum Alloy, type 5052-

H32 per QQ-A-250/8 Chem film or

anodize finish (see part number code)

or .063 thick Stainless Steel, type 304

per ASTM-A666. Passivated per AMS-

QQ-P-35

ROLL PIN

Stainless Steel, 2.38 (.093) x 4.75 (.187)

long. -3 and -4 versions use 6.35 (.250)

long

Extractor width

4.6

(.18)

APPLICATION DATA

Two (2) extractors are recommended per board. (One “L” and one

“R” per printed circuit board). Provides extraction travel of 11.4

(.45) mininum, with a mechanical advantage of 4.5:1

Alternate

Flat Style

Part Number Code Example:

P109CR-4R-BLK-SED
Series 109 Extractor made from stainless steel with

pre-start pin, made for .125 thick boards, anodized

black with ESD silkscreen for a right handed extraction.

FINISH TABLE

Code
Letter

Finish

[blank]

Chemical Film Gold

-BLK

Black Anodize

-BRN

Brown Anodize

-RED

Red Anodize

-ORG

Orange Anodize

-YEL

Yellow Anodize

-BLU

Blue Anodize

-GRN

Green Anodize

-PRP

Purple Anodize

-CLR

Clear Anodize

ESD silkscreen will be in a contrasting color.

Board

Tickness

Dash No.

Board

Thickness

Gap

Dimension±

0.13 (± .005)

Extractor

Width

Dimension

[blank]

1.6 (.063)

1.91 (.075)

6.4 (.25)

-3

2.3 (.094)

2.67 (.105)

6.4 (.25)

-4

3.2 (.125)

3.61 (.142)

7.4 (.29)

Series 109 Aluminum Extractors

Units: mm (in)

Unless otherwise specified:

.xx ± .25, .x ±.5

(.xxx ± .010, .xx ± .02)

Board Module
Assembly

Pin included

Left-hand shown

89104607

www.calmark.com • 800-854-7086

Technical Applications

Discussion

CARD-LOK

For cold wall applications

The Card-Lok series of retainers offer the highest locking

force available for cold wall applications. They mount to

Printed Circuit Board assemblies using screws, rivets or

adhesive bonding and are then inserted into machined

channels of cold plates or heat exchangers. The wedge

design holds the Printed Circuit Board firmly in place

providing high resistance to shock and vibration while

producing maximum thermal transfer.

CHANNEL-LOK

For sheet metal or non-machined cold wall

applications

The Channel-Lok series of locking retainers are designed

for heavy shock and vibration, and for effective heat

dissipation in sheet metal chassis/heat sink applications.

The design combines chassis mounted housing with

Card-Lok retainers.

METAL RETAINERS

For low cost sheet metal applications or cold wall

applications

The metal retainers offer a low cost spring action printed

circuit board retention design. They attach to the chassis

using screws, rivets or adhesives. Retainers provide

protection against shock and vibration and offer excellent

grounding characteristics.

NYLON CARD GUIDES

For low cost sheet metal applications

Patented nylon guide entry, easy tool-less installation and

snap guides available to support low cost sheet metal

card cages.

INSERTER & EXTRACTOR

Metal and nylon designs

Calmark offers a wide selection of Injectors and Extractors

for use in both sheet metal and cold wall applications.

Available in both metal and nylon designs, these products

facilitate the insertion and extraction of printed circuit

boards with high density backplane interconnects.

Clamping Force Data .......................... 70
Thermal Resistance – Card-Loks......... 71
Mounting and Installation

for Guides ........................................... 72
Theoretical Discussion on

Wedge-Lok & Ejector/Injectors .......... 73
Materials & Finishes ........................... 74

Technical Reference Tables

Table 1. ANSI Head Cap Screws ...........75
Table 2. ANSI Flat Countersunk Head

Cap Screws .........................................76
Table 3. ANSI Helical Spring Lock

Washers .............................................77
Table 4. ANSI Type A Plain Washers ....78
Table 5. Machinability - Surface

Cutting Speeds ...................................79
Table 6. Hardness Conversion Numbers

for Steel .............................................80
Table 7. Sheet Gauges ........................81
Table 8. Millimeters Converted to

Decimal & Fractional Inches ...............82
Table 9. Conversion Factors ................83
DSCC Cross Reference .........................84
Glossary .............................................85

Technical Applications Section

www.calmark.com • 800-854-7086

The clamping outputs indicated in the table below are the results of averaged data. Within each series numerous Card-Loks of various lengths,

finishes, and configurations were cycle tested. The accumulated data verified the following:
•  Clamping output is not dependent on length
•  Clamping output is greatly affected by choice of finish
•  Clamping output is greatly improved when washers are used
Customized Card-Lok variations for specific applications are available on request

Product

Series

Screw
Size

Torque
Setting

N-cm (in-lbs)

Clamping Force

Chem Film Finish
N (lbs)

Chem Film Finish
With Washers N (lbs)

Black Anodize

N (lbs)

Black Anodize
With Washers N (lbs)

223

4-40

N/A

Consult factory

224

4-40

N/A

Consult factory

225

4-40

68 (6)

445 (100)

778 (175)

1223 (275)

1423 (320)

E225

4-40

68 (6)

445 (100)

778 (175)

1223 (275)

1423 (320)

L225

4-40

N/A

533 (120)

N/A

226

4-40

68 (6)

801 (180)

1402 (315)

2224 (500)

2755 (615)

227

4-40

68 (6)

N/A

778 (175)

N/A

1423 (320)

228

4-40

68 (6)

N/A

1402 (315)

N/A

2775 (615)

230

4-40

68 (6)

489 (110)

890 (200)

3334 (300)

1512 (340)

231

4-40

68 (6)

801 (180)

1402 (315)

2224 (500)

2755 (615)

235

68 (6)

445 (100)

N/A

1223 (275)

N/A

236

68 (6)

801 (150)

N/A

2224 (500)

N/A

240

4-40

68 (6)

489 (110)

623 (140)

1446 (325)

1490 (335)

245

6-32

110 (10)

623 (140)

1023 (230)

1779 (400)

250

8-32

220 (20)

1112 (250)

1779 (400)

2958 (665)

3114 (700)

255

10-32

350 (31)

1779 (400)

2669 (600)

3336 (750)

3670 (825)

260

4-40

68 (6)

N/A

1779 (400)

N/A

2224 (500)

261

4-40

68 (6)

N/A

667 (150)

N/A

1223 (275)

L260

4-40

N/A

556 (125)*

N/A

LE260

4-40

N/A

556 (125)*

N/A

263

4-40

68 (6)

N/A

1779 (400)

N/A

2224 (500)

264

4-40

68 (6)

N/A

667 (150)

N/A

1223 (275)

265

4-40

68 (6)

N/A

1557 (350)

N/A

2113 (475)

266

4-40

68 (6)

N/A

600 (135)

N/A

801 (180)

267

4-40

68 (6)

N/A

1557 (350)

N/A

2113 (475)

280

8-32

220 (20)

N/A

3336 (750)

N/A

4003 (900)

281

8-32

220 (20)

N/A

1245 (280)

N/A

2224 (500)

Clamping Force Data - Card-Loks

* Finish is dry film lube over black anodize

www.calmark.com • 800-854-7086

Mounting & Installation for Card-Loks

BOTTOM FACE

RIVET

SERIES 223-255

2-56 SCREW

SERIES 260-267

2-56 SCREW

SERIES 280/281

4-40 SCREW

PCB OR MODULE

THICKNESS

PCB OR MODULE

THICKNESS

PCB OR MODULE

THICKNESS

WEDGE BODY

SHAFT

89066861

FOR RIVET MOUNTED

SERIES 280/281

CLINCH

ALLOWANCE =

RIVET BODY

DIAMETER

FOR RIVET

TYPE MOUNTING

CARD-LOK

WEDGE BODY

OR SHAFT

PCB OR MODULE

THICKNESS

FOR RIVET MOUNTED

SERIES 223/267

.124/.128

.061/.065

.200/.236

.090/.135

60°

.048

Maximum

.032

Maximum

WORK THICKNESS +

CLINCH ALLOWANCE

(SEE FIGURE)

SUGGESTED RIVET DIMENSIONS

WORK THICKNESS +

CLINCH ALLOWANCE

(SEE FIGURE)

WORK

THICKNESS

89066862

Series

“A” Recommended

223

1.143 (0.045)

224

1.143 (0.045)

225

1.143 (0.045)

E225

1.143 (0.045)

L225

1.143 (0.045)

226

1.270 (0.050)

227

2.667 (0.105)

228

2.667 (0.105)

230

0.889 (0.035)

231

0.889 (0.035)

235

1.270 (0.050)

236

1.270 (0.050)

240

0.762 (0.030)

245

1.143 (0.045)

250

1.905 (0.075)

255

1.905 (0.075)

260

4.953 (0.195)

261

4.953 (0.195)

L260

4.953 (0.195)

LE260

4.953 (0.195)

263

4.953 (0.195)

264

4.953 (0.195)

265

4.953 (0.195)

266

4.953 (0.195)

267

3.810 (0.150)

280

7.366 (0.290)

281

8.382 (0.330)

Screw Length and Head Style depend on

details of the application. In general, the screw

should not extend beyond the bottom face of

the wedge body or top edge of the shaft.

www.calmark.com • 800-854-7086

Basic theory, knowledge of pertinent forces and understanding of product functionality enables an engineer to select the proper

components. The discussion below illustrates the advantage of five or more piece Card-Lok and provides information on how to calculate

insertion/extraction forces.

Theoretical Discussion on Card-Lok & Inserter Extractors

Card-Lok Theory

out

=(N-1)F

[(1-μ

tan (α)) ÷ (tan(α)+μ

+ μ

(1-μ

tan(μ)))]

Where N = number of wedge segments

α = angle of interface

= friction coefficient of 45° wedge face

= friction coefficient of wedge surface in cantact with cold wall

If μ

= μ

= μ and α = 45° then

out

=(N-1)F

[(1-μ) ÷ (1+2-μ

)]

89066875

Three-piece

out

Five-piece

out

Seven-piece

out

2.00•F

4.00•F

6.00•F

.05

1.73•F

3.40•F

5.19•F

.10

1.51•F

3.03•F

4.54•F

.15

1.33•F

2.66•F

3.99•F

.20

1.18•F

2.35•F

3.53•F

.25

1.04•F

2.09•F

3.13•F

.30

.93•F

1.85•F

2.78•F

.40

.73•F

1.46•F

2.20•F

= T ÷ kd where k ≈ .25 (friction coefficient of screw)

d = diameter of screw and T=Torque

Inserter - Extractor Theory

Basic theory, knowledge of pertinent forces and understanding

of product functionality enables an engineer to select the proper

components. The discussion below illustrates the advantage of five or

more piece Card-Lok and provides information on how to calculate

insertion/extraction forces.

= 0 = F

+ L

) - F

)

÷ F

] = [(L

+ L

) ÷ L

] = C

Example:

Calculate the inserter force exerted on the backplane connector

when 8.9N (2lbs) finger force is applied to a pair of Series 107 inserter

extractors.

= C F

2 = 4.21 (8.9N (2 lb.)) (2) = 74.9N (16.84 lb.)

89066874

Series

101

17.475 (.688)

9.499 (.374)

2.84

103

17.475 (.688)

11.099 (.437)

2.57

104

17.856 (.703)

9.906 (.390)

2.80

105

24.003 (.945)

7.874 (.310)

4.04

107

38.735 (1.525)

12.065 (.475)

4.21

107-10

26.035 (1.025)

12.065 (.475)

3.16

107-20

38.735 (1.525)

12.065 (.475)

4.21

107-30

34.925 (1.375)

8.255 (.325)

5.23

107-40

38.735 (1.525)

12.065 (.475)

4.21

107-50

38.735 (1.525)

12.065 (.475)

4.21

107-51

26.035 (1.025)

12.065 (.475)

3.16

107-55

76.825 (3.025)

12.065 (.475)

7.37

107-70

35.433 (1.395)

12.065 (.475)

3.93

107-73

35.433 (1.395)

12.065 (.475)

3.93

107-75

70.485 (2.775)

12.065 (.475)

6.84

108

38.735 (1.525)

11.811 (.465)

4.28

109

28.956 (1.140)

9.114 (.360)

4.17

Values represent insertion force ratios. Extraction forces are slightly higher for these products.

www.calmark.com • 800-854-7086

Guide to Materials and Finishes

Galvanic Corrosion

Galvanic corrosion occurs when dissimilar metals are in contact in the

presence of an electrolyte (conductive medium). Galvanic com-patibility

therefore is important if the application is in an environ-ment where an

electrolyte is present. For most office environments this is of little concern.

However, if the application is in a marine environment or has contact with

outside air then galvanic compat-ibility is necessary.
The table below shows a typical galvanic series. In general, the far-ther

apart two metals appear on the chart the greater the tendency for

corrosion.

Finish Options

Beryllium Copper Finish Options (see product pages for ordering

information)

• Tin Plate per Mil-T-10727 .0002 min.

– Good corrosion resistance but will tarnish over time.

• Nickel Plate per QQ-N-290 Class 1, Grade F

– Excellent corrosion protection along with high hardness for wear and

low friction.

• Electroless Nickel Plate per Mil-C-26074 Class 1, Grade B

– Excellent corrosion protection along with good electrical conductivity

and low friction.

Aluminum Finish Options (see product pages for ordering

information)

• Chemical Film (Gold) per MIL-C-5541, Class 1A or Class 3 Chemical Film

(Clear) per MIL-DTL-5541, Class 3, Type II

– Other commonly used trade names associated with this process

include: Alodine, Alochrom, Iridite.

• Anodize (“Soft”), per MIL-8625, Class 2, Type II (.00005” - .0003”)

– Good corrosion resistance with medium abrasion resistance.
– Unless specified otherwise color will be black.

• Anodize (“Hard”), per MIL-8625, Class 2, Type III (.002”)

– Excellent corrosion and abrasion resistance.
– Unless specified otherwise color will be black.

• Electroless Nickel Plate per Mil-C-26074 Class 1, Grade B

– Excellent corrosion protection along with good electrical conductivity

and low friction.

Stainless Steel Finish

• Passivation per MIL-S-5002

– Passivation is not a plating or a coating. It is a cleaning process that

removes residue from manufacturing operations and enhances the

natural corrosion resistance of stainless steels.

Material Properties

(Mpa)

410-550

710

329

280

Tensile Strength
(Mpa)

520-610

780

673

330

Elastic Modulus
(Gpa)

125-130 125-130

190

207

Materials & Finishes

Magnesium

Magnesium Alloys

Zinc

Aluminum

Cadmium

Aluminum 17ST

Steel or iron

Cast iron

Chromium-iron (active)

Ni-Resist

18-8 Chromium-nickel-iron (active)

18-8-3 Chromium-nickel-molybdenum-iron (active)

Lead-tin solders

Lead

Tin

Nickel (active)

Inconel (active)

Hastelloy C (active)

Brasses
Copper

Bronzes

Copper-nickel alloys

Monel

Silver Solder

Nickel (passive)

Inconel (passive)

Chromium-iron (passive)

18-8 Chromium-nickel iron (passive)

18-8-3 Chromium-nickel-molybdenum-iron (passive)

Hastelloy C (passive)

Silver

Carbon and graphite

Platinum

Gold

CATHODIC (Most Noble)

ANODIC (Least Noble) End Material

Material

BeCu

BeCu HT Stainless Steel Steel

Type

C17200 1/4H C17200 H

304

ASTM A366

Yield Strength

www.calmark.com • 800-854-7086

DSCC Specification

Calmark Series

83023

Series 103, 104, 105 and 107 (plastic)

84103

Series 225, 230, 240

84191

Series 109

85034

Series 125/126, 165/166, NW125/NW126, NW165/NW166

89024

Series 260

89064

Series 226, 231

AA59590/18

Series 245

AA59590/1

Series L225

AA59590/2

Series E225

AA59590/3

Series V225

AA59590/4

Series 225

AA59590/5

Series 225

AA59590/6

Series V225

AA59590/7

Series 230

AA59590/10

Series V230

AA59590/11

Series V240

AA59590/12

Series 240

AA59590/13

Series 250

AA59590/14

Series V250

AA59590/15

Series 250

AA59590/16

Series V250

AA59590/17

Series 245

AA59590/18

Series V245

AA59590/19

Series 245

AA59590/20

Series V245

AA59590/21

Series 255

AA59590/22

Series V255

AA59590/23

Series 255

AA59590/24

Series V255

AA59590/25

Series VE225

AA59789/1

Series 226

AA59789/2

Series V226

AA59789/3

Series 231

AA59789/4

Series V231

AA59789/5

Series L260

AA59789/6

Series LE260

AA59789/7

Series 267

AA59789/8

Series V267

AA59789/9

Series 265

AA59789/10

Series V265

DSCC Cross Reference

www.calmark.com • 800-854-7086

Glossary

Beryllium Copper

- A metal alloy consisting principally

of copper with a small amount of Beryllium (usually

1%-2%)

Board Module Assembly

- A mechanical structure that

supports a plug-in unit, like a power supply, radio or

CCA, etc.

Board Mount

- Where the device is mounted onto the

PC board

Card-Lok

- PC board retainer using wedge

configuration to provide a locking force

Card Retainer

- A device that securely holds a PCB or

Board Module Assembly in a chassis

CCA

- A Conduction Cooled Assembly consisting of

a conduction frame, extractors, wedge clamps and

backing plate or strip that is mounted to a Plug-In Unit

for structural and thermal performance enhancement

Chassis Mount

- Where the device is mounted directly

onto the chassis or cold wall

Cold Wall or Cold Plate

- The portion of the chassis

that sinks heat away from the card to the environment

Conduction

- A mode of heat transfer in a stationary

medium

Contact Intimacy

- Direct PCB or Board Module

Assembly contact with the cold wall for maximum heat

dissipation

DSCC

- Defense Supply Center Columbus

(For 5998 documents)

Attn: DSCC-VAC, PO Box 3990

Columbus, OH 43215-5000

Tel: 614-692-0562 Fax: 614-692-6939

E-mail: 5998_Documents@dscc.dta.mil

Datum

- The starting point (zero) for dimensioning a

part

Extractor

- Hardware used to disengage PCB or Board

Module Assembly from backplate interconnects

Inserter

- Hardware to assist insertion of PC board into

backplane interconnects

Lever Actuated

- A means to activate a Card-Lok

without tools required

Normal Force

- Force acting perpendicular to the long

axis of a PCB retainer such as a Wedge-Lok™

Plug-in Unit

- A generic description of an assembly

usually consisting of a PCB with connectors and may

optionally have extractors and covers

PCB

- Printed Circuit Board

- Printed Circuti

Retention Force

- The force required to move a locked

PC board that is not connected to a backplane; unit: lbs.

or oz.

Shock

- A violent impact

Thermal Grease

- A compound that reduces thermal

resistance at interfaces

Thermal Resistance

- Resistance to the flow of heat

usually measured as a temperature drop across an

interface; units: °C per Watt per inch

Thermal Transfer

- The passage of heat from PC board

to chassis or heat sink

Thermocouple

- A sensor that measures temperature

Torque

- A measure of rotational force; Units: Newton-

meters, Newton-centimeters, inch-lbs or inch-oz.

Vibration

- Quick motion to and fro; oscillatory

Zero Entry Force

- No force is required to insert or

extract a board into or out of a card guide or channel