| FASTENER LENGTH | 1.431 INCHES NOMINAL |
| GRIP LENGTH | 0.939 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| HEAD HEIGHT | 0.070 INCHES MINIMUM AND 0.078 INCHES MAXIMUM |
| HEAD STYLE | STRAIGHT PAN |
| HEAD MAJOR DIAMETER | 0.483 INCHES MINIMUM AND 0.503 INCHES MAXIMUM |
| LUBRICATION | DRY FILM |
| MATERIAL | STEEL COMP H11 OVERALL |
| NOMINAL THREAD SIZE | 0.3125 INCHES |
| SHANK DIAMETER | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| WIDTH BETWEEN FLATS | 0.1270 INCHES MINIMUM AND 0.1295 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL AND CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |