| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 3.250 INCHES NOMINAL |
| FASTENER LENGTH | 3.250 INCHES NOMINAL |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6300 NATIONAL STD ALL MATERIAL RESPONSES OR |
| AMS6280 NATIONAL STD ALL MATERIAL RESPONSES OR |
| AMS6322 NATIONAL STD ALL MATERIAL RESPONSES OR |
| AMS6382 NATIONAL STD ALL MATERIAL RESPONSES OR |
| AMS6325 NATIONAL STD ALL MATERIAL RESPONSES OR |
| AMS6327 NATIONAL STD ALL MATERIAL RESPONSES OR |
| AMS6320 NATIONAL STD ALL MATERIAL RESPONSES OR |
| AMS-S-6758 NATIONAL STD ALL MATERIAL RESPONSES OR |
| MIL-S-6050 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416, TYPE 2, CLASS 2 NATIONAL STD ALL TREATMENT RESPONSES OVERALL |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.172 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.500 INCHES NOMINAL |