| CHAMFER LENGTH | 0.0313 INCHES NOMINAL |
| FASTENER LENGTH | 0.9875 INCHES MINIMUM AND 1.0075 INCHES MAXIMUM |
| GRIP LENGTH | 0.5575 INCHES MINIMUM AND 0.5725 INCHES MAXIMUM |
| HEAD HEIGHT | 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| HEAD STYLE | STRAIGHT PAN |
| HEAD MAJOR DIAMETER | 0.387 INCHES MINIMUM AND 0.412 INCHES MAXIMUM |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| NOMINAL THREAD SIZE | 0.25 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PIN, PROTRUDING SHEAR HEAD |
| SHANK DIAMETER | 0.2797 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 13400 DOUBLE POUNDS PER SQUARE INCH |
| WIDTH BETWEEN FLATS | 0.122 INCHES MINIMUM AND 0.142 INCHES MAXIMUM |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |