DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.914 INCHES MINIMUM AND 1.964 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 2.500 INCHES NOMINAL |
FEATURES PROVIDED | FINISHED HEAD |
GRIP DIAMETER | 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM |
GRIP LENGTH | 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
MATERIAL | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.750 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE |
WIDTH BETWEEN FLATS | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM |
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 | 0.475 INCHES MINIMUM AND 0.525 INCHES MAXIMUM |
THREAD SERIES DESIGNATOR | UNJF |
THREAD QUANTITY PER INCH | 18 |