THREAD DIRECTION | RIGHT-HAND |
FASTENER LENGTH | 1.578 INCHES MINIMUM AND |
| 1.625 INCHES MAXIMUM |
MATERIAL | STEEL COMP 431 OVERALL |
THREAD LENGTH | 0.500 INCHES MINIMUM AND |
| 0.578 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
THREAD QUANTITY PER INCH | 24 |
THREAD CLASS | 3A |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | PASSIVATE OVERALL |
HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND |
| 32.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
HEAD HEIGHT | 0.172 INCHES MINIMUM AND |
| 0.204 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND |
| 0.502 INCHES MAXIMUM |
GRIP LENGTH | 1.047 INCHES MINIMUM AND |
| 1.078 INCHES MAXIMUM |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.406 INCHES MINIMUM AND |
| 1.438 INCHES MAXIMUM FIRST HOLE |
SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND |
| 0.086 INCHES MAXIMUM FIRST HOLE |
FEATURES PROVIDED | FINISHED HEAD |
SPEC/STD CONTROLLING DATA | |
MANUFACTURERS CODE | 88044 |
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN5C14 |