2a thread class right-hand 0.250" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.232" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.875" thread length binding head style 32 thread quantity per inch phosphate manganese screw surface treated unc thread series
3a thread class right-hand 0.658" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.384" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.469" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series