2a thread class right-hand 0.219" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.344" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.338" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.186" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.225" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.639" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjf thread series