| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.531 INCHES NOMINAL |
| FASTENER LENGTH | 1.704 INCHES MINIMUM AND |
| 1.750 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP 4340 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6382 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS6349 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS6484 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS6414 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS6322 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS6327 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | COUNTERSUNK CYLINDRICAL CONVEX |
| HEAD MAJOR DIAMETER | 0.625 INCHES MINIMUM AND |
| 0.635 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.1885 INCHES MINIMUM AND |
| 0.1905 INCHES MAXIMUM |
| GRIP LENGTH | 1.188 INCHES NOMINAL |
| GRIP DIAMETER | 0.3108 INCHES MINIMUM AND |
| 0.3117 INCHES MAXIMUM |