Precision close-tolerance Shoulder Screw. The shoulder diameter is ground to a closer tolerance than ordinary stripper bolts, for better bearing action. Shoulder length is held to a plus tolerance to allow a nominal-size plate to swing freely underneath the head.

| Material | Heat Treat | Finish | DFARS | RoHS |
| Alloy Steel | Heat Treated Rc 32-43 | Black Oxide | Metric | Yes |

| Shoulder Diameter Nominal (Inch) | Shoulder Diameter Actual (Inch) | A Thread (Inch) | B Nominal (Inch) | B Actual (Inch) | D (Inch) | E (Inch) | F Diameter (Inch) | G (Inch) |
| 5/16" | 0.3125" | 1/4-20" | 1/4" | 0.2500" | 7/32" | 7/16" | 7/16" | 5/32" |