FASTENER LENGTH | 0.766 INCHES MINIMUM AND 0.796 INCHES MAXIMUM |
GRIP LENGTH | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
GRIP DIAMETER | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM |
HEAD STYLE | DISHED HEXAGON |
LOCKING FEATURE | STRIP THREADS |
MATERIAL | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
SPECIFICATION/STANDARD DATA | 80205-NAS1225 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
SURFACE FINISH | 32.0 MICROINCHES THREADS |
SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
SURFACE FINISH | 63.0 MICROINCHES GRIP |
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 | 0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 24 |
THREAD SERIES DESIGNATOR | UNJF |