DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.452 INCHES NOMINAL FIRST HOLE |
COUNTERSINK ANGLE | 60.0 DEGREES NOMINAL |
FASTENER LENGTH | 0.403 INCHES MINIMUM AND 0.418 INCHES MAXIMUM |
FEATURES PROVIDED | CASEHARDENED AND FINISHED HEAD |
GRIP LENGTH | 0.403 INCHES MINIMUM AND 0.418 INCHES MAXIMUM |
HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.155 INCHES MAXIMUM |
HEAD STYLE | SQUARE |
HEAD LENGTH | 0.760 INCHES MINIMUM AND 0.765 INCHES MAXIMUM |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP 1020 OVERALL |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.072 INCHES MINIMUM AND 0.078 INCHES MAXIMUM FIRST HOLE |
WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND 0.495 INCHES MAXIMUM |
SURFACE TREATMENT | PHOSPHATE OVERALL |
THREAD DIRECTION | RIGHT-HAND |
THREAD CLASS | 3A |
THREAD LENGTH | 0.313 INCHES MINIMUM AND 0.333 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNF |