DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.770 INCHES MINIMUM AND 4.790 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 5.250 INCHES NOMINAL |
HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.750 INCHES NOMINAL |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA322 ASSN STD ALL MATERIAL RESPONSES OR ASTMA331 ASSN STD ALL MATERIAL RESPONSES OVERALL |
MATERIAL | STEEL COMP 4140 OR STEEL COMP 8640 OVERALL |
NOMINAL THREAD DIAMETER | 0.875 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.172 INCHES MINIMUM AND 0.182 INCHES MAXIMUM FIRST HOLE |
SHOULDER DIAMETER | 0.069 INCHES MINIMUM AND 0.071 INCHES MAXIMUM SECOND SHOULDER |
SHOULDER LENGTH | 0.170 INCHES MINIMUM AND 0.200 INCHES MAXIMUM SECOND SHOULDER |
SHOULDER LENGTH | 4.000 INCHES NOMINAL FOURTH HOLE |
SHOULDER SHAPE | ROUND ALL SHOULDERS |
WIDTH BETWEEN FLATS | 1.750 INCHES NOMINAL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY2,CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 1.080 INCHES NOMINAL |
THREAD QUANTITY PER INCH | 9 |
THREAD SERIES DESIGNATOR | UNC |