| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.425 INCHES NOMINAL |
| FASTENER LENGTH | 1.987 INCHES NOMINAL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS5853 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.125 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.429 INCHES MINIMUM AND |
| 0.439 INCHES MAXIMUM |
| GRIP LENGTH | 1.562 INCHES NOMINAL |
| GRIP DIAMETER | 0.2490 INCHES MINIMUM AND |
| 0.2495 INCHES MAXIMUM |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL ALL HOLES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, HEX HEAD, CLOSE TOLERANCE, A286 CRES |