PEMPEM Fastener Catalogue

CFHC–632–6

CH Concealed-Head Self-Clinching Studs · Unified · PDF page 21 · PEM Fastener Catalogue

CH Concealed-Head Self-Clinching Studs · Unified · thread .138-32 (#6-32)

Concealed-head flush stud, 300 series stainless.

Also written as CFHC-632-6.

Part number breakdown

SegmentCodeMeaning
TypeCFHConcealed-head flush stud
MaterialC300 series stainless
Thread632Thread size .138-32 (#6-32)
Length Code "L"6

Dimensions

Defines L, A, C. Technical diagram of a CHA™, CFHA™, CHC™, and CFHC™ aluminum or stainless steel stud. Key Dimensional Details: L: Overall length of the threaded section. A: Thickness of the head/flange. C: Diameter of the head/flange. .062" / 1.6 mm Max.: Maximum width of the unthreaded shank/undercut area below the flange.Defines E. The image is a technical drawing of a circular mechanical component, likely a clinch nut or fastener. Key Information: Entity: A circular, serrated (toothed gear-like component. Dimple: A central circular mark indicated as a "Dimple (Registered Trademark". Dimension E: Represents the total outer diameter across the serrated edges. Construction: Features multiple concentric circles and a vertical/horizontal axis for alignment. Note: The clinching profile may vary.
DimensionValue
Thread Size.138-32 (#6-32)
Type › Stainless SteelCFHC
Thread Code632
Length Code "L" ±.015 (Length code is in 16ths of an inch) › .3756
Min. Sheet Thickness.093
Blind Mounting Hole Dia. +.003 −.000.213
Min. Depth of Blind Hole.075
A (Shank) Max..071
E ±.010.250
C Max..212
Min. Dist. Hole ℄ To Edge.188
Max. Hole In Attached Parts.160

Material and finish

PropertyValue
TypeCFHC
ThreadsExternal, ASME B1.1 2A / ASME B1.13M, 6g
Fastener Materials300 Series Stainless Steel
FinishPassivated and/or tested per ASTM A380
For Use In Sheet HardnessHRB 70 / HB 125 or Less

Source: Material and Finish Specifications · PDF page 23

Performance data

PropertyValue
TypeCFHC
Thread Code632
Max. Tightening Torque Ref. (in. lbs.)8.75
Test Sheet Material › Cold-rolled Steel › Installation (lbs.)2,700
Test Sheet Material › Cold-rolled Steel › Pullout (lbs.)350
Test Sheet Material › 5052-H34 Aluminum › Installation (lbs.)2,500
Test Sheet Material › 5052-H34 Aluminum › Pullout (lbs.)260

Source: Performance Data (1) · PDF page 24

Installation tooling

PropertyValue
TypeCHA / CHC / CFHA / CFHC
Thread Code632
D +.003 −.000.139
Punch Part Number975200048
Anvil Part Number970200007300

Source: PEMSERTER® Installation Tooling · PDF page 23

End mill information

PropertyValue
Thread Code632
Fastener TypeCFHC, CHC, CFHA, CHA Studs
Required Size End Mill.213"
PEM Part No.CHM-213

Source: End Mill Information · PDF page 23

Figure on page 23

Source

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