3a thread class right-hand 0.260" grip length 32 thread quantity per inch 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.319" thread length flat countersunk head style 0.490" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.313" thread length flat countersunk head style 0.178" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.877" thread length dished hexagon head style 2.615" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.354" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series