DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.620 INCHES NOMINAL FIRST HOLE |
CONCENTRIC HOLE DEPTH | 3.860 INCHES MINIMUM AND 3.920 INCHES MAXIMUM |
CONCENTRIC HOLE DIAMETER | 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM |
COUNTERBORE DEPTH | 0.068 INCHES MINIMUM AND 0.093 INCHES MAXIMUM |
COUNTERBORE DIAMETER | 0.501 INCHES MINIMUM AND 0.508 INCHES MAXIMUM |
FASTENER LENGTH | 4.720 INCHES MINIMUM AND 4.800 INCHES MAXIMUM |
HEAD HEIGHT | 0.280 INCHES NOMINAL |
HEAD STYLE | HEXAGON |
MATERIAL | STEEL OVERALL |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES NOMINAL FIRST HOLE |
WIDTH BETWEEN FLATS | 0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
STYLE DESIGNATOR | COUNTERBORE UNTHREADED |
SURFACE TREATMENT | CADMIUM OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.960 INCHES MINIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNF |