THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
THREAD QUANTITY PER INCH | 24 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.435 INCHES MINIMUM |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OR |
| MIL-S-8695 MIL SPEC 6TH MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |
| 40.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
SINGLE SHEAR STRENGTH | 10500 POUNDS PER SQUARE INCH |
HEAD HEIGHT | 0.188 INCHES NOMINAL |
WIDTH BETWEEN FLATS | 0.562 INCHES NOMINAL |
GRIP LENGTH | 0.438 INCHES NOMINAL |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.657 INCHES NOMINAL FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES NOMINAL FIRST HOLE |
PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |