DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.444 INCHES MINIMUM AND 3.464 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 3.735 INCHES MINIMUM AND 3.765 INCHES MAXIMUM |
HEAD DIAMETER | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
HEAD HEIGHT | 0.407 INCHES NOMINAL |
INTERNAL DRIVE STYLE | HEXAGON |
MATERIAL | STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OR STEEL COMP 3140 OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.438 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE |
SPECIFICATION/STANDARD DATA | 80205-NAS147 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
WIDTH ACROSS FLATS | 0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.788 INCHES MINIMUM AND 0.838 INCHES MAXIMUM |
THREAD SERIES DESIGNATOR | UNJF |
THREAD QUANTITY PER INCH | 20 |