3a nut thread thread class right-hand nut thread 0.340" nut thread thread length 1.530" overall length 24 nut thread thread quantity per inch additional cotter pin hole on other end 0.076 in. min, 0.086 in. max dia 0.120 in. from end unf nut thread thread series
2a thread class right-hand 0.500" thread length flat countersunk head style 40 thread quantity per inch navy special project passivate screw surface treated unc thread series
3a thread class right-hand 0.275" grip length 36 thread quantity per inch 95000 single pounds per square inch shear strength cadmium surface treated unjc thread series
2a nut thread thread class right-hand nut thread 0.607" nut thread thread length 24 nut thread thread quantity per inch navy special project unf nut thread thread series
3a thread class right-hand 0.251" thread length flat countersunk head style 1.115" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.350" thread length flat countersunk head style 0.115" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 1.000" thread length flat chamfer head style 0.047" hole diameter 28 thread quantity per inch passivate surface treated unf thread series