FASTENER LENGTH | 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
HEAD DIAMETER | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM |
HEAD HEIGHT | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
HEAD STYLE | FLAT CHAMFER |
HOLE CONFIGURATION STYLE | ROUND LONGITUDINAL HOLE |
HOLE DIAMETER | 0.047 INCHES NOMINAL |
HOLE QUANTITY | 6 |
HOLE TYPE | DRILLED |
INTERNAL DRIVE STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL OVERALL |
MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH |
MINIMUM YIELD STRENGTH | 150000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
NONDEFINITIVE SPEC/STD DATA | 4 TYPE |
WIDTH ACROSS FLATS | 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.637 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 24 |
THREAD SERIES DESIGNATOR | UNF |