CHA–832–4
CH Concealed-Head Self-Clinching Studs · Unified · PDF page 21 · PEM Fastener Catalogue
CH Concealed-Head Self-Clinching Studs · Unified · thread .164-32 (#8-32)
Concealed-head stud, Aluminium.
Also written as CHA-832-4.
Part number breakdown
| Segment | Code | Meaning |
|---|---|---|
| Type | CH | Concealed-head stud |
| Material | A | Aluminium |
| Thread | 832 | Thread size .164-32 (#8-32) |
| Length Code "L" | 4 | — |
Dimensions
| Dimension | Value |
|---|---|
| Thread Size | .164-32 (#8-32) |
| Type › Aluminum | CHA |
| Thread Code | 832 |
| Length Code "L" ±.015 (Length code is in 16ths of an inch) › .250 | 4 |
| Min. Sheet Thickness | .062 |
| Blind Mounting Hole Dia. +.003 −.000 | .290 |
| Min. Depth of Blind Hole | .043 |
| A (Shank) Max. | .041 |
| E ±.010 | .328 |
| C Max. | .289 |
| Min. Dist. Hole ℄ To Edge | .219 |
| Max. Hole In Attached Parts | .185 |
Material and finish
| Property | Value |
|---|---|
| Type | CHA |
| Threads | External, ASME B1.1 2A / ASME B1.13M, 6g |
| Fastener Materials | Aluminum |
| Finish | No Finish |
| For Use In Sheet Hardness | HRB 50 / HB 89 or Less |
Source: Material and Finish Specifications · PDF page 23
Performance data
| Property | Value |
|---|---|
| Type | CHA |
| Thread Code | 832 |
| Max. Tightening Torque Ref. (in. lbs.) | 10.8 |
| Test Sheet Material › Cold-rolled Steel › Installation (lbs.) | (2) |
| Test Sheet Material › Cold-rolled Steel › Pullout (lbs.) | (2) |
| Test Sheet Material › 5052-H34 Aluminum › Installation (lbs.) | 2,800 |
| Test Sheet Material › 5052-H34 Aluminum › Pullout (lbs.) | 145 |
Source: Performance Data (1) · PDF page 24
Installation tooling
| Property | Value |
|---|---|
| Type | CHA / CHC / CFHA / CFHC |
| Thread Code | 832 |
| D +.003 −.000 | .179 |
| Punch Part Number | 975200048 |
| Anvil Part Number | 970200008300 |
Source: PEMSERTER® Installation Tooling · PDF page 23
End mill information
| Property | Value |
|---|---|
| Thread Code | 832, M4 |
| Fastener Type | CFHC, CHC, CFHA, CHA Studs |
| Required Size End Mill | .290" |
| PEM Part No. | CHM-290 |
Source: End Mill Information · PDF page 23
Related drawings
Source
- Dimensions table: CH™ Concealed-Head Self-Clinching Studs and Standoffs › CHA™, CFHA™, CHC™ and CFHC™ Aluminum and Stainless Steel Studs · PDF page 21
- Catalogue page: CHA™, CFHA™, CHC™ and CFHC™ Aluminum and Stainless Steel Studs
- All CH Concealed-Head Self-Clinching Studs parts: CH Concealed-Head Self-Clinching Studs