DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.088 INCHES MINIMUM AND 4.118 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 4.208 INCHES MINIMUM AND 4.228 INCHES MAXIMUM |
GRIP DIAMETER | 0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM |
GRIP LENGTH | 3.562 INCHES MINIMUM AND 3.578 INCHES MAXIMUM |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.251 INCHES MINIMUM AND 0.266 INCHES MAXIMUM |
HEAD STYLE | DISHED HEXAGON |
LOCKING FEATURE | DETENT RING GRIP |
MATERIAL | STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 4140 OR STEEL COMP 4130 OR STEEL COMP 6150 OVERALL |
MINIMUM TENSILE STRENGTH | 95000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE |
WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
SURFACE FINISH | 63.0 MICROINCHES GRIP |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.401 INCHES MINIMUM AND 0.546 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNJF |