| FASTENER LENGTH | 0.635 INCHES MINIMUM AND 0.655 INCHES MAXIMUM |
| GRIP LENGTH | 0.255 INCHES MAXIMUM |
| HEAD HEIGHT | 0.077 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.415 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| HEAD STYLE | ERR-090 |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 431 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK DIAMETER | 0.2646 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 125000 SINGLE POUNDS PER SQUARE INCH |
| WIDTH BETWEEN FLATS | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | HI-SHEAR PROCESS SPEC. 258,CAGEC,73197 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3A |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |