CH™ Concealed-Head Self-Clinching Studs and Standoffs
Installation
PDF page 23 · PEM Fastener Catalogue
- Mill a round blind hole to the correct minimum depth.*
- Place fastener into anvil hole.
- Place the mounting hole over the shank of the fastener.
- With punch and anvil surfaces parallel, apply squeezing force until the flange is flush with the mounting sheet.
* End mills available from PennEngineering. See chart below.
Installation drawing callouts: CFHA, CFHC, CHC, CHA concealed-head studs — Punch; Anvil; D; L + .250" / 6.35 mm. CSOS, CSS concealed-head standoffs — Punch; Anvil; D; L + .250" / 6.35 mm.
Installation Notes
- For best results we recommend using a Haeger® or PEMSERTER® machine for installation of PEM® self-clinching fasteners. Please check our website for more information.
- Visit the Animation Library on our website to view the installation process for select products.
End Mill Information
Double-ended, two-flute H.S.S. center-cutting end mills are available from stock.
PennEngineering does not manufacture center-cutting end mills, but we do keep a supply in stock for your convenience.
| Thread Code | Fastener Type | Required Size End Mill | PEM Part No. |
|---|---|---|---|
| 440, M3 | CFHC, CHC, CFHA, CHA Studs | .172" | CHM-172 |
| CSOS, CSS Standoffs | .213" | CHM-213 | |
| 632 | CFHC, CHC, CFHA, CHA Studs | .213" | CHM-213 |
| CSOS, CSS Standoffs | .290" | CHM-290 | |
| 832, M4 | CFHC, CHC, CFHA, CHA Studs | .290" | CHM-290 |
| CSOS, CSS Standoffs | .312" | CHM-312 | |
| 032, M5 | CFHC, CHC, CFHA, CHA Studs | .312" | CHM-312 |
| CSOS, CSS Standoffs | .344" | CHM-344 | |
| 0420, M6 | CSOS Standoffs | .390" | CHM-390 |
PEMSERTER® Installation Tooling
Unified — all dimensions are in inches.
| Type | Thread Code | D +.003 −.000 | Punch Part Number | Anvil Part Number |
|---|---|---|---|---|
| CHA / CHC / CFHA / CFHC | 440 | .127 | 975200048 | 970200006300 |
| CHA / CHC / CFHA / CFHC | 632 | .139 | 975200048 | 970200007300 |
| CHA / CHC / CFHA / CFHC | 832 | .179 | 975200048 | 970200008300 |
| CHA / CHC / CFHA / CFHC | 032 | .205 | 975200048 | 970200009300 |
| CSS / CSOS | 440 | .170 | 975200048 | 970200014300 |
| CSS / CSOS | 632 | .218 | 975200048 | 970200015300 |
| CSS / CSOS | 832 | .250 | 975200048 | 970200016300 |
| CSS / CSOS | 032 | .295 | 975200048 | 970200017300 |
| CSS / CSOS | 0420 | .358 | 975200048 | 970200018300 |
Metric — all dimensions are in millimeters.
| Type | Thread Code | D +0.08 | Punch Part Number | Anvil Part Number |
|---|---|---|---|---|
| CHA / CHC / CFHA / CFHC | M3 | 3.4 | 975200048 | 970200229300 |
| CHA / CHC / CFHA / CFHC | M4 | 4.4 | 975200048 | 970200019300 |
| CHA / CHC / CFHA / CFHC | M5 | 5.4 | 975200048 | 970200020300 |
| CSS / CSOS | M3 | 4.33 | 975200048 | 970200014300 |
| CSS / CSOS | M4 | 6.36 | 975200048 | 970200016300 |
| CSS / CSOS | M5 | 7.5 | 975200048 | 970200017300 |
| CSS / CSOS | M6 | 9.13 | 975200048 | 970200018300 |