2a thread class right-hand 0.128" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 3.616" thread length flat countersunk head style 56 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.363" thread length pan head style 0.032" hole diameter 32 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.313" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series