| MATERIAL | TITANIUM ALLOY OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| HEAD STYLE | FLUSH COUNTERSUNK |
| HEAD HEIGHT | 0.0523 INCHES MINIMUM AND |
| 0.0544 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.3898 INCHES MINIMUM AND |
| 0.3948 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND |
| 101.0 DEGREES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| FASTENER LENGTH | 1.83 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.0947 INCHES MINIMUM AND |
| 0.0967 INCHES MAXIMUM |
| SHANK DIAMETER | 0.2641 INCHES MINIMUM AND |
| 0.2651 INCHES MAXIMUM |
| GRIP LENGTH | 1.5 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD SIZE | 0.2500 INCHES |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 28 |
| THREAD DIRECTION | RIGHT-HAND |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| IDENTIFICATION CODE COLOR | ORANGE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | 100 DEGREE FLUSH SHEAR HEAD PIN |