DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.606 INCHES MINIMUM AND 1.621 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 1.778 INCHES MINIMUM AND 1.783 INCHES MAXIMUM |
HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP 4340 OR STEEL OVERALL |
MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.107 INCHES NOMINAL FIRST HOLE |
SHOULDER DIAMETER | 0.6234 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 1.294 INCHES MINIMUM AND 1.299 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
THREAD CLASS | 3A |
THREAD LENGTH | 0.397 INCHES MINIMUM AND 0.417 INCHES MAXIMUM |
THREAD DIRECTION | RIGHT-HAND |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNF |
WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM |