| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 3.1375 INCHES MINIMUM AND 3.1625 INCHES MAXIMUM |
| GRIP LENGTH | 2.5525 INCHES MINIMUM AND 2.5675 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 1.039 INCHES MINIMUM AND 1.130 INCHES MAXIMUM |
| HEAD STYLE | FLUSH COUNTERSUNK |
| LUBRICATION | CETYL ALCOHOL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8740 OR STEEL COMP 4340 OVERALL |
| NOMINAL THREAD SIZE | 0.5000 INCHES |
| SHANK STYLE | PIN-RIVET, TAPERED, THREADED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY2, CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |