FASTENER LENGTH | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM |
HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
HEAD STYLE | HEADLESS (SETSCREW) |
INTERNAL DRIVE STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
MATERIAL | STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 5 STYLE |
POINT STYLE | FULL DOG |
WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.765 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 18 |
THREAD SERIES DESIGNATOR | UNC |