| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.016 INCHES MINIMUM AND 1.066 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 16 |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.389 INCHES MINIMUM FIRST HOLE AND 2.439 INCHES MAXIMUM FIRST HOLE |
| FASTENER LENGTH | 2.464 INCHES MINIMUM AND 2.494 INCHES MAXIMUM |
| GRIP DIAMETER | 0.7480 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM |
| GRIP LENGTH | 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM |
| HEAD STYLE | DISHED HEXAGON |
| NOMINAL THREAD DIAMETER | 0.750 INCHES |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR AMS6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP E4340 OVERALL OR STEEL COMP 8740 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM FIRST HOLE AND 0.151 INCHES MAXIMUM FIRST HOLE |
| WIDTH BETWEEN FLATS | 1.052 INCHES MINIMUM AND 1.065 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| THREAD CLASS | 3A |