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CH Concealed-Head Self-Clinching Studs and Standoffs from the PEM Fasteners catalogue, page 22.
| Property | Value |
|---|---|
| Thread Size | .250-20 (1/4-20) |
| Thread Code | 0420 |
| Min. Sheet Thickness | .062 in |
| Blind Mounting Hole Dia. +.003 −.000 | .390 in |
| Min. Depth of Blind Hole | .043 in |
| Min. Depth Full Thread F | .375 in |
| A (Shank) Max. | .041 in |
| B Max. | .354 in |
| C Max. | .389 in |
| H Nom. | .438 in |
| Min. Dist. Hole ℄ To Edge | .375 in |
| Property | Value |
|---|---|
| Stainless Steel | CSS |
| Property | Value |
|---|---|
| .312 | 5 in |