EXTENDED WASHER DIAMETER | 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM |
EXTENDED WASHER THICKNESS | 0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM |
FASTENER LENGTH | 2.778 INCHES MINIMUM AND 2.798 INCHES MAXIMUM |
GRIP DIAMETER | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM |
GRIP LENGTH | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM |
HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.494 INCHES MINIMUM AND 0.514 INCHES MAXIMUM |
HEAD STYLE | DOUBLE HEXAGON W/HOLE |
HOLE CONFIGURATION STYLE | HEXAGON LONGITUDINAL HOLE |
HOLE DIAMETER | 0.055 INCHES NOMINAL |
HOLE QUANTITY | 4 |
HOLE TYPE | DRILLED |
MATERIAL | STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL |
MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
WIDTH BETWEEN FLATS | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.768 INCHES MINIMUM AND 0.808 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNJF |