THREAD SERIES DESIGNATOR | UNRC |
NOMINAL THREAD DIAMETER | 0.500 INCHES |
THREAD QUANTITY PER INCH | 13 |
THREAD CLASS | 3A |
FASTENER LENGTH | 1.750 INCHES NOMINAL |
MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE |
| NICKEL ALLOY K-500 FASTENER |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-286, CLA FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
HARDNESS RATING | 24.0 ROCKWELL C NOMINAL FASTENER |
MINIMUM TENSILE STRENGTH | 130000 POUNDS PER SQUARE INCH |
MINIMUM YIELD STRENGTH | 90000 POUNDS PER SQUARE INCH |
HEAD STYLE | FLAT CHAMFER |
HEAD DIAMETER | 0.735 INCHES MINIMUM AND |
| 0.750 INCHES MAXIMUM |
HEAD HEIGHT | 0.492 INCHES MINIMUM AND |
| 0.500 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | HEXAGON |
WIDTH ACROSS FLATS | 0.375 INCHES NOMINAL |
LOCKING FEATURE | PELLET OR |
| PATCH OR |
| STRIP THREADS |
NONDEFINITIVE SPEC/STD DATA | 2 TYPE |
SPEC/STD CONTROLLING DATA | |
MANUFACTURERS CODE | 81349 |
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-DTL-1222 |