| FASTENER LENGTH | 0.637 INCHES MINIMUM AND 0.657 INCHES MAXIMUM |
| GRIP LENGTH | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM |
| HEAD HEIGHT | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.415 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| HEAD STYLE | STRAIGHT PAN |
| LUBRICATION | CETYL ALCOHOL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL |
| MINIMUM TENSILE STRENGTH | 5320 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.2500 INCHES |
| SHANK DIAMETER | 0.2481 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 9380 DOUBLE POUNDS PER SQUARE INCH |
| WIDTH BETWEEN FLATS | 0.160 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | +5103 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |