FASTENER LENGTH | 1.478 INCHES MINIMUM AND 1.522 INCHES MAXIMUM |
HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
HEAD STYLE | HEADLESS (SETSCREW) |
INTERNAL DRIVE STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
MATERIAL | STEEL COMP 303 OR STEEL COMP 303SE OVERALL |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 4 STYLE |
POINT STYLE | CUP |
WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | PASSIVATE OVERALL |
THREAD DIRECTION | RIGHT-HAND |
THREAD CLASS | 3A |
THREAD QUANTITY PER INCH | 24 |
THREAD SERIES DESIGNATOR | UNF |