FASTENER LENGTH | 2.920 INCHES MINIMUM AND 3.000 INCHES MAXIMUM |
HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
HEAD DIAMETER | 0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
HEAD HEIGHT | 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
HEAD STYLE | FLAT CHAMFER |
INTERNAL DRIVE STYLE | HEXAGON |
LOCKING FEATURE | PATCH OR STRIP THREADS |
MATERIAL | STEEL OVERALL |
MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH |
MINIMUM YIELD STRENGTH | 150000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
NONDEFINITIVE SPEC/STD DATA | 6 TYPE |
WIDTH ACROSS FLATS | 0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 1.420 INCHES MINIMUM AND 1.885 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNF |