FASTENER LENGTH | 1.000 INCHES NOMINAL |
HARDNESS RATING | 80.0 ROCKWELL B MINIMUM FASTENER |
HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
HEAD STYLE | FLAT CHAMFER |
INTERNAL DRIVE STYLE | HEXAGON |
LOCKING FEATURE | PATCH OR PELLET OR STRIP THREADS |
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
MATERIAL | NICKEL ALLOY 400 FASTENER |
MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE |
MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
NONDEFINITIVE SPEC/STD DATA | 2 TYPE |
WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.900 INCHES MINIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNC |