THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.4375 INCHES |
THREAD QUANTITY PER INCH | 20 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.694 INCHES NOMINAL |
FASTENER LENGTH | 1.804 INCHES MINIMUM AND |
| 1.834 INCHES MAXIMUM |
MATERIAL | IRON ALLOY 660 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | PASSIVATE HEAD |
| CHROMIUM GRIP |
| PASSIVATE THREADS |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE HEAD |
| QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE GRIP |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE THREADS |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
HEAD STYLE | DISHED HEXAGON |
HEAD HEIGHT | 0.219 INCHES MINIMUM AND |
| 0.234 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.678 INCHES MINIMUM AND |
| 0.690 INCHES MAXIMUM |
GRIP LENGTH | 1.115 INCHES MINIMUM AND |
| 1.135 INCHES MAXIMUM |
GRIP DIAMETER | 0.4365 INCHES MINIMUM AND |
| 0.4370 INCHES MAXIMUM |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.747 INCHES NOMINAL FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND |
| 0.116 INCHES MAXIMUM FIRST HOLE |
SPECIFICATION/STANDARD DATA | 80205-NAS6707 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |