DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.225 INCHES NOMINAL FIRST HOLE |
EXTENDED WASHER DIAMETER | 0.812 INCHES NOMINAL |
EXTENDED WASHER THICKNESS | 0.062 INCHES NOMINAL |
FASTENER LENGTH | 1.375 INCHES NOMINAL |
HEAD HEIGHT | 0.500 INCHES NOMINAL |
HEAD STYLE | HEXAGON EXTENDED WASHER |
MATERIAL | STEEL CORROSION RESISTING OVERALL |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
SHANK UNTHREADED HOLE DIAMETER | 0.077 INCHES MINIMUM AND 0.082 INCHES MAXIMUM FIRST HOLE |
SHOULDER DIAMETER | 0.4985 INCHES MINIMUM AND 0.4965 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
SHOULDER SHAPE | ROUND SECOND SHOULDER |
SHOULDER LENGTH | 0.469 INCHES NOMINAL FIRST SHOULDER |
SHOULDER LENGTH | 0.551 INCHES NOMINAL SECOND SHOULDER |
SHOULDER WIDTH ACROSS FLATS | 0.375 INCHES NOMINAL FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.355 INCHES NOMINAL |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNJF |