THREAD SERIES DESIGNATOR | UNJF |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
THREAD QUANTITY PER INCH | 24 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.990 INCHES NOMINAL |
FASTENER LENGTH | 1.125 INCHES NOMINAL |
MATERIAL | STEEL COMP 601 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | NICKEL AND |
| CADMIUM OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
HARDNESS RATING | 42.0 ROCKWELL C MINIMUM AND |
| 46.0 ROCKWELL C MAXIMUM OVERALL |
HEAD STYLE | DOUBLE HEXAGON W/HOLE |
HEAD HEIGHT | 0.422 INCHES NOMINAL |
WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND |
| 0.439 INCHES MAXIMUM |
EXTENDED WASHER DIAMETER | 0.562 INCHES NOMINAL |
EXTENDED WASHER THICKNESS | 0.090 INCHES MINIMUM AND |
| 0.100 INCHES MAXIMUM |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
FIRST DIAMETER FROM HEAD | 0.343 INCHES MINIMUM AND |
| 0.353 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.125 INCHES MINIMUM AND |
| 0.145 INCHES MAXIMUM |
SPEC/STD CONTROLLING DATA | |
MANUFACTURERS CODE | 96906 |
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS9211-12 |