THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
THREAD QUANTITY PER INCH | 20 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.735 INCHES NOMINAL |
FASTENER LENGTH | 1.345 INCHES MINIMUM AND |
| 1.375 INCHES MAXIMUM |
MATERIAL | IRON ALLOY 660 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD ALL MATERIAL RESPONSES OR |
| AMS 5732 ASSN STD ALL MATERIAL RESPONSES OR |
| AMS 5737 ASSN STD ALL MATERIAL RESPONSES OR |
| AMS 5753 ASSN STD ALL MATERIAL RESPONSES OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE 2. CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
HEAD STYLE | DISHED HEXAGON |
HEAD HEIGHT | 0.250 INCHES MINIMUM AND |
| 0.265 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND |
| 0.752 INCHES MAXIMUM |
GRIP LENGTH | 0.615 INCHES MINIMUM AND |
| 0.635 INCHES MAXIMUM |
GRIP DIAMETER | 0.4990 INCHES MINIMUM AND |
| 0.4995 INCHES MAXIMUM |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.144 INCHES NOMINAL FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND |
| 0.116 INCHES MAXIMUM FIRST HOLE |
SPECIFICATION/STANDARD DATA | 80205 - NAS6708 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |