| 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 | 0.9725 INCHES MINIMUM AND |
| 1.0025 INCHES MAXIMUM |
| MATERIAL | NICKEL ALLOY 718 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-L-87132, TYPE I, GRADE B MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | FILLISTER COUNTERSUNK |
| HEAD DIAMETER | 0.470 INCHES MINIMUM AND |
| 0.477 INCHES MAXIMUM |
| HEAD HEIGHT | 0.095 INCHES NOMINAL |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND |
| 101.0 DEGREES MAXIMUM |
| GRIP LENGTH | 0.5525 INCHES MINIMUM AND |
| 0.5575 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2802 INCHES MINIMUM AND |
| 0.2807 INCHES MAXIMUM |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.8915 INCHES MINIMUM AND |
| 1.1035 INCHES MAXIMUM THREADS |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND |
| 0.086 INCHES MAXIMUM THREADS |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, TENSION HEAD, GEAR DRIVE RECESS |