DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM FIRST HOLE |
DISTANCE FROM CENTERLINE TO FLAT | 0.139 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
FASTENER LENGTH | 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM |
FEATURES PROVIDED | UNFINISHED HEAD |
GRIP LENGTH | 0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM |
HARDNESS RATING | 29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
HEAD DIAMETER | 0.390 INCHES MINIMUM AND 0.420 INCHES MAXIMUM |
HEAD STYLE | DEE CHAMFER |
MATERIAL | STEEL OVERALL |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.084 INCHES MINIMUM AND 0.089 INCHES MAXIMUM FIRST HOLE |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.375 INCHES NOMINAL |
THREAD SERIES DESIGNATOR | UNF |
THREAD QUANTITY PER INCH | 28 |