CONCENTRIC HOLE DEPTH | 1.550 INCHES NOMINAL |
CONCENTRIC HOLE DIAMETER | 0.812 INCHES NOMINAL |
FASTENER LENGTH | 4.440 INCHES MINIMUM AND 4.480 INCHES MAXIMUM |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-8844 CONDITION F4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP 4340 OVERALL |
MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.438 INCHES |
SHOULDER DIAMETER | 1.1802 INCHES MINIMUM AND 1.1832 INCHES MAXIMUM |
SHOULDER LENGTH | 3.560 INCHES NOMINAL |
WIDTH BETWEEN FLATS | 1.248 INCHES MINIMUM AND 1.255 INCHES MAXIMUM |
STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.880 INCHES MINIMUM AND 0.920 INCHES MAXIMUM |
THREAD SERIES DESIGNATOR | UNJF |
THREAD QUANTITY PER INCH | 20 |