| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.595 INCHES MINIMUM AND |
| 0.615 INCHES MAXIMUM |
| FASTENER LENGTH | 8.644 INCHES MINIMUM AND |
| 8.665 INCHES MAXIMUM |
| MATERIAL | STEEL COMP H11 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL AND |
| CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL |
| HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND |
| 54.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 260000 POUNDS PER SQUARE INCH |
| HEAD STYLE | ROUND W/WRENCH FLATS |
| HEAD DIAMETER | 0.900 INCHES MINIMUM AND |
| 1.000 INCHES MAXIMUM |
| HEAD HEIGHT | 0.270 INCHES MINIMUM AND |
| 0.350 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.660 INCHES MINIMUM AND |
| 0.670 INCHES MAXIMUM |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHOULDER DIAMETER | 0.6200 INCHES MINIMUM AND |
| 0.6230 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 7.889 INCHES MINIMUM AND |
| 7.900 INCHES MAXIMUM FIRST SHOULDER |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 8.418 INCHES MINIMUM AND |
| 8.459 INCHES MAXIMUM FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND |
| 0.116 INCHES MAXIMUM FIRST HOLE |