DISTANCE FROM CENTERLINE TO FLAT | 0.141 INCHES MINIMUM AND 0.148 INCHES MAXIMUM |
FASTENER LENGTH | 1.062 INCHES MINIMUM AND 1.067 INCHES MAXIMUM |
HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
HEAD DIAMETER | 0.372 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
HEAD HEIGHT | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
HEAD STYLE | DEE CHAMFER |
MATERIAL | STEEL COMP 8740 OVERALL |
PROPRIETARY CHARACTERISTICS | PACS |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SHOULDER DIAMETER | 0.2735 INCHES MINIMUM FIRST SHOULDER AND 0.2740 INCHES MAXIMUM FIRST SHOULDER |
SHOULDER LENGTH | 0.406 INCHES NOMINAL FIRST SHOULDER |
SHOULDER SHAPE | ROUND ALL SHOULDERS |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.406 INCHES NOMINAL |
THREAD QUANTITY PER INCH | 28 |
THREAD SERIES DESIGNATOR | UNF |