| FASTENER LENGTH | 0.625 INCHES NOMINAL |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | TM AS74, ALLOY STEEL COMMERCIAL ITEM DESCRIPTION 15TH MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREWS, SHOULDER, HEX SOCKET HEAD |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| SPECIAL FEATURES | NSN ASSIGNED IN SUPPORT OF ARMY CLEAN HARDWARE ABATEMENT INITIATIVE |
| SPECIFICATION/STANDARD DATA | 47-ASME B18.24-2023 NATIONAL STD/SPEC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-PRF-32647, ZN-NI ALLOY, HEXAVALENT CHROMIUM FREE, TYPE K20 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC NICKEL AND PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |