DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.719 INCHES NOMINAL FIRST HOLE |
EXTENDED WASHER DIAMETER | 0.875 INCHES NOMINAL |
EXTENDED WASHER THICKNESS | 0.063 INCHES NOMINAL |
FASTENER LENGTH | 1.875 INCHES NOMINAL |
HEAD HEIGHT | 0.281 INCHES NOMINAL |
HEAD STYLE | HEXAGON EXTENDED WASHER |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 COND F-4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP 4130 OVERALL |
MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
SHOULDER DIAMETER | 0.5530 INCHES MINIMUM AND 0.5550 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 0.500 INCHES NOMINAL FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
SURFACE TREATMENT | CADMIUM OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 1.188 INCHES MINIMUM |
THREAD QUANTITY PER INCH | 24 |
THREAD SERIES DESIGNATOR | UNF |