DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.330 INCHES MINIMUM AND 1.340 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 1.510 INCHES MINIMUM AND 1.520 INCHES MAXIMUM |
HEAD HEIGHT | 0.330 INCHES NOMINAL |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | S99 FSCM K0289 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL OVERALL |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.002 INCHES NOMINAL FIRST HOLE |
SHOULDER DIAMETER | 0.561 INCHES MINIMUM AND 0.562 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 0.960 INCHES MINIMUM AND 0.970 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.550 INCHES MAXIMUM |
THREAD SERIES DESIGNATOR | UNF |
THREAD QUANTITY PER INCH | 20 |