COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
FASTENER LENGTH | 1.205 INCHES MINIMUM AND 1.225 INCHES MAXIMUM |
HEAD DIAMETER | 0.518 INCHES MINIMUM AND 0.528 INCHES MAXIMUM |
HEAD STYLE | FLAT COUNTERSUNK |
INTERNAL DRIVE STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP 8740 OR STEEL COMP 4140 OVERALL |
PROPRIETARY CHARACTERISTICS | PACS |
MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
SPECIAL FEATURES | THREADS TO BE DOUBLE LEAD |
WIDTH ACROSS FLATS | 0.219 INCHES MINIMUM AND 0.222 INCHES MAXIMUM |
SURFACE FINISH | 32.0 MICROINCHES GRIP |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.635 INCHES MINIMUM AND 0.794 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 24 |
THREAD SERIES DESIGNATOR | UNF |