| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.751 INCHES MINIMUM AND |
| 0.818 INCHES MAXIMUM |
| FASTENER LENGTH | 5.074 INCHES MINIMUM AND |
| 5.121 INCHES MAXIMUM |
| MATERIAL | STEEL COMP XM-13 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| HEAD STYLE | SPLINE DRIVE SHEAR HEAD |
| HEAD HEIGHT | 0.340 INCHES MINIMUM AND |
| 0.360 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.967 INCHES MINIMUM |
| SHOULDER SHAPE | ROUND FIRST SHOULDER |
| SHOULDER DIAMETER | 0.6547 INCHES MINIMUM AND |
| 0.6552 INCHES MAXIMUM FIRST SHOULDER |
| SHOULDER LENGTH | 4.303 INCHES MINIMUM AND |
| 4.323 INCHES MAXIMUM FIRST SHOULDER |
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.945 INCHES MINIMUM AND |
| 5.002 INCHES MAXIMUM FIRST HOLE |
| SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND |
| 0.146 INCHES MAXIMUM FIRST HOLE |