THREAD SERIES DESIGNATOR | UNC |
NOMINAL THREAD DIAMETER | 0.164 INCHES |
THREAD QUANTITY PER INCH | 32 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.658 INCHES MINIMUM AND |
| 0.750 INCHES MAXIMUM |
FASTENER LENGTH | 0.720 INCHES MINIMUM AND |
| 0.750 INCHES MAXIMUM |
MATERIAL | STEEL COMP 302 OR |
| STEEL COMP 303 OR |
| STEEL COMP 304 OR |
| STEEL COMP 305 OR |
| STEEL COMP 316 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
SURFACE TREATMENT | OXIDE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-13924,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
HARDNESS RATING | 80.0 ROCKWELL B MINIMUM OVERALL |
MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH |
HEAD STYLE | FLAT CHAMFER |
HEAD DIAMETER | 0.262 INCHES MINIMUM AND |
| 0.270 INCHES MAXIMUM |
HEAD HEIGHT | 0.159 INCHES MINIMUM AND |
| 0.164 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | HEXAGON |
WIDTH ACROSS FLATS | 0.141 INCHES MINIMUM AND |
| 0.143 INCHES MAXIMUM |
SPECIAL FEATURES | FINISH COLOR BLACK |
NONDEFINITIVE SPEC/STD DATA | 6 TYPE |
SPEC/STD CONTROLLING DATA | |
MANUFACTURERS CODE | 81348 |
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-S-86 |