FASTENER LENGTH | 0.706 INCHES MINIMUM AND 0.726 INCHES MAXIMUM |
HARDNESS RATING | 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.159 INCHES MINIMUM AND 0.179 INCHES MAXIMUM |
HEAD STYLE | DISHED HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL |
MINIMUM TENSILE STRENGTH | 125 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SHOULDER DIAMETER | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER SHAPE | ROUND FIRST SHOULDER |
WIDTH BETWEEN FLATS | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | GSS8050M,FSCM 26512 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNF |