THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.562 INCHES |
THREAD QUANTITY PER INCH | 18 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.840 INCHES NOMINAL |
FASTENER LENGTH | 1.325 INCHES MINIMUM AND |
| 1.355 INCHES MAXIMUM |
MATERIAL | IRON ALLOY 660 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | PASSIVATE OVERALL |
| CHROMIUM GRIP |
| PASSIVATE FASTENER |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| QQ-C-320 CL2 FED SPEC SINGLE TREATMENT RESPONSE GRIP |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
HEAD STYLE | DISHED HEXAGON |
HEAD HEIGHT | 0.312 INCHES MINIMUM AND |
| 0.327 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND |
| 0.940 INCHES MAXIMUM |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
SHOULDER DIAMETER | 0.6230 INCHES MINIMUM AND |
| 0.6240 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 0.490 INCHES MINIMUM AND |
| 0.510 INCHES MAXIMUM FIRST SHOULDER |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.122 INCHES NOMINAL THREADS |
SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND |
| 0.151 INCHES MAXIMUM THREADS |