DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.770 INCHES MINIMUM AND 2.780 INCHES MAXIMUM FIRST HOLE |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.240 INCHES NOMINAL |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER | 2.220 INCHES NOMINAL |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.980 INCHES NOMINAL |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 1.680 INCHES NOMINAL |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 4 |
FASTENER LENGTH | 2.940 INCHES NOMINAL |
FIRST DIAMETER FROM HEAD | 0.525 INCHES MINIMUM AND 0.526 INCHES MAXIMUM |
FOURTH DIAMETER FROM HEAD | 0.425 INCHES MINIMUM AND 0.430 INCHES MAXIMUM |
HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP 8640 OVERALL |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
SECOND DIAMETER FROM HEAD | 0.425 INCHES MINIMUM AND 0.530 INCHES MAXIMUM |
SHANK UNTHREADED HOLE DIAMETER | 0.140 INCHES NOMINAL FIRST HOLE |
SPECIAL FEATURES | HOLE DRILLED PERPENDICULAR TO AND THROUGH COTTER PIN HOLE |
SURFACE TREATMENT | PHOSPHATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THIRD DIAMETER FROM HEAD | 0.510 INCHES MINIMUM AND 0.511 INCHES MAXIMUM |
THREAD LENGTH | 0.660 INCHES MINIMUM AND 0.700 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNF |