DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.749 INCHES NOMINAL FIRST HOLE |
FASTENER LENGTH | 3.047 INCHES NOMINAL |
HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.468 INCHES NOMINAL |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP E4340 OVERALL |
MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.875 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES NOMINAL FIRST HOLE |
SHOULDER DIAMETER | 0.998 INCHES MINIMUM AND 0.999 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
SHOULDER LENGTH | 1.843 INCHES NOMINAL FIRST SHOULDER |
WIDTH BETWEEN FLATS | 1.240 INCHES MINIMUM AND 1.253 INCHES MAXIMUM |
SURFACE TREATMENT | CADMIUM OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 1.204 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 14 |
THREAD SERIES DESIGNATOR | UNF |