2a thread class right-hand 1.303" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 1.750" thread length flat countersunk head style 16 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.188" thread length flat countersunk head style 64 thread quantity per inch anodize screw surface treated unf thread series
2a thread class right-hand 0.336" thread length flat countersunk head style 56 thread quantity per inch cadmium screw surface treated unc thread series