| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| GRIP LENGTH | 0.500 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.501 INCHES MINIMUM AND 0.506 INCHES MAXIMUM |
| HEAD STYLE | FLUSH COUNTERSUNK |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK DIAMETER | 0.279 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, TAPERED, THREADED |
| SHEAR STRENGTH | 11800 DOUBLE POUNDS PER SQUARE INCH |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 28 |
| TIP DIAMETER | 0.242 INCHES MINIMUM AND 0.244 INCHES MAXIMUM |