DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.315 INCHES NOMINAL FIRST HOLE |
FASTENER LENGTH | 4.500 INCHES MINIMUM AND 4.530 INCHES MAXIMUM |
HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.625 INCHES NOMINAL |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL OVERALL |
NOMINAL THREAD DIAMETER | 1.250 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES NOMINAL FIRST HOLE |
WIDTH BETWEEN FLATS | 1.802 INCHES MINIMUM AND 1.815 INCHES MAXIMUM |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.835 INCHES MINIMUM AND 0.989 INCHES MAXIMUM |
THREAD SERIES DESIGNATOR | UNJF |
THREAD QUANTITY PER INCH | 12 |