DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.080 INCHES MINIMUM AND 1.100 INCHES MAXIMUM FIRST HOLE |
EXTENDED WASHER DIAMETER | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
EXTENDED WASHER THICKNESS | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
FASTENER LENGTH | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM |
HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
HEAD STYLE | HEXAGON EXTENDED WASHER |
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 | 0.496 INCHES MINIMUM AND 0.497 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 0.202 INCHES MINIMUM AND 0.204 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.430 INCHES MINIMUM AND 0.470 INCHES MAXIMUM |
THREAD SERIES DESIGNATOR | UNJF |
THREAD QUANTITY PER INCH | 28 |