HARDNESS RATING | 27.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP E4340 OVERALL |
PROPRIETARY CHARACTERISTICS | PACS |
MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.065 INCHES MINIMUM FIRST HOLE AND 0.072 INCHES MAXIMUM FIRST HOLE |
SHOULDER DIAMETER | 0.437 INCHES NOMINAL SECOND SHOULDER |
SHOULDER DIAMETER | 0.490 INCHES MINIMUM FOURTH HOLE AND 0.495 INCHES MAXIMUM FOURTH HOLE |
SHOULDER SHAPE | ROUND SECOND SHOULDER |
SHOULDER SHAPE | SQUARE FOURTH HOLE |
SPECIAL FEATURES | SECOND SHOULDER THREADED 0.4375-20 UNF-3A |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD QUANTITY PER INCH | 24 |
THREAD SERIES DESIGNATOR | UNF |