| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| FASTENER LENGTH | 1.563 INCHES MINIMUM AND 1.583 INCHES MAXIMUM |
| GRIP LENGTH | 0.933 INCHES MINIMUM AND 0.943 INCHES MAXIMUM |
| HEAD STYLE | FLUSH COUNTERSUNK |
| HEAD MAJOR DIAMETER | 0.881 INCHES MINIMUM AND 0.889 INCHES MAXIMUM |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5624 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP XM-13 OVERALL |
| MINIMUM TENSILE STRENGTH | 25800 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.438 INCHES |
| SHANK DIAMETER | 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, TAPERED, THREADED |
| SHEAR STRENGTH | 37500 DOUBLE POUNDS PER SQUARE INCH |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| TIP DIAMETER | 0.426 INCHES MINIMUM AND 0.431 INCHES MAXIMUM |