2a thread class right-hand 0.549" thread length hexagon head style 28 thread quantity per inch self-sealing passivate fastener surface treated unf thread series
2a nut thread thread class right-hand nut thread 0.750" nut thread thread length 5.750" overall length 18 nut thread thread quantity per inch under cut in shoulder starting 0.120 in. from nut end, 0.562 in. diameter cadmium surface treated shouldered unf nut thread thread series
3a thread class right-hand 4.625" grip length 28 thread quantity per inch 156000 single pounds per square inch shear strength nickel surface treated unjf thread series
3a thread class right-hand 0.441" thread length spline drive shear head head style 0.802" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.310" thread length round w/wrench flats head style 32 thread quantity per inch navy special project passivate surface treated unf thread series
3a thread class right-hand 0.514" thread length hexagon head style 0.046" hole diameter 2.985" grip length 28 thread quantity per inch navy special project passivate surface treated unjf thread series