| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.9595 INCHES NOMINAL |
| GRIP LENGTH | 0.5625 INCHES NOMINAL |
| HEAD STYLE | FLUSH COUNTERSUNK |
| HEAD MAJOR DIAMETER | 0.387 INCHES MINIMUM AND 0.429 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP XM-13 OVERALL |
| MINIMUM TENSILE STRENGTH | 4400 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK DIAMETER | 0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 15500 DOUBLE POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | RECESSED HEAD PER MS33750 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | HI SHEAR SPEC 258 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH BETWEEN FLATS | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM |