DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.650 INCHES MINIMUM AND 0.670 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 0.775 INCHES MINIMUM AND 0.795 INCHES MAXIMUM |
HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
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 | 0.371 INCHES MINIMUM AND 0.372 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 0.130 INCHES MINIMUM AND 0.134 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2406 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CHROMIUM OVERALL |
THREAD CLASS | 3A |
THREAD LENGTH | 0.295 INCHES MINIMUM AND 0.335 INCHES MAXIMUM |
THREAD DIRECTION | RIGHT-HAND |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNJF |