FASTENER LENGTH | 4.406 INCHES MINIMUM AND 4.500 INCHES MAXIMUM |
HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.452 INCHES MINIMUM AND 0.485 INCHES MAXIMUM |
HEAD STYLE | SQUARE |
INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
NOMINAL THREAD DIAMETER | 0.625 INCHES |
POINT STYLE | CUP |
WIDTH BETWEEN FLATS | 0.606 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 4.500 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 11 |
THREAD SERIES DESIGNATOR | UNC |