DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.020 INCHES NOMINAL FIRST HOLE |
FASTENER LENGTH | 2.250 INCHES NOMINAL |
HEAD HEIGHT | 0.250 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6427 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL CORROSION RESISTING OVERALL |
MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.108 INCHES MINIMUM AND 0.113 INCHES MAXIMUM FIRST HOLE |
SHOULDER DIAMETER | 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
SHOULDER LENGTH | 1.771 INCHES MINIMUM AND 1.773 INCHES MAXIMUM FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.477 INCHES MINIMUM AND 0.479 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNJF |