DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.335 INCHES MINIMUM AND 2.365 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 3.600 INCHES NOMINAL |
HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL OVERALL |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.137 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE |
SHOULDER DIAMETER | 0.747 INCHES MINIMUM AND 0.749 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 2.640 INCHES MINIMUM AND 2.660 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
WIDTH BETWEEN FLATS | 1.040 INCHES MINIMUM AND 1.080 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.940 INCHES MINIMUM AND 0.960 INCHES MAXIMUM |
THREAD SERIES DESIGNATOR | UNF |
THREAD QUANTITY PER INCH | 20 |