FASTENER LENGTH | 1.440 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
FEATURES PROVIDED | FINISHED HEAD |
HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM |
HEAD STYLE | DISTORTED HEAD |
LOCKING FEATURE | LOCKWASHER BEARING SURFACE OF HEAD |
MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
MATERIAL | STEEL OVERALL |
MINIMUM TENSILE STRENGTH | 50000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.438 INCHES |
WIDTH BETWEEN FLATS | 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DOD-P-16232,TY Z CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | PHOSPHATE OVERALL |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 1.375 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNF |