DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.600 INCHES MINIMUM AND 1.620 INCHES MAXIMUM FIRST HOLE |
CHAMFER ANGLE | 43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM |
FASTENER LENGTH | 1.710 INCHES MINIMUM AND 1.730 INCHES MAXIMUM |
HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
HEAD LENGTH | 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL CORROSION RESISTING OVERALL |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE |
SHOULDER DIAMETER | 0.400 INCHES MINIMUM AND 0.401 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 1.306 INCHES MINIMUM AND 1.316 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM |
THREAD CLASS | 3A |
THREAD LENGTH | 0.322 INCHES MINIMUM AND 0.372 INCHES MAXIMUM |
THREAD DIRECTION | RIGHT-HAND |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNJF |