DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.658 INCHES MINIMUM AND 2.668 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 2.829 INCHES MINIMUM AND 2.859 INCHES MAXIMUM |
GRIP DIAMETER | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM |
GRIP LENGTH | 2.365 INCHES MINIMUM AND 2.385 INCHES MAXIMUM |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM |
HEAD STYLE | DISHED HEXAGON |
MATERIAL | STEEL OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.3125 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
SPECIFICATION/STANDARD DATA | 80205-NAS1305 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD DIRECTION | RIGHT-HAND |
THREAD CLASS | 3A |
THREAD LENGTH | 0.469 INCHES NOMINAL |
THREAD QUANTITY PER INCH | 24 |
THREAD SERIES DESIGNATOR | UNJF |