2a thread class right-hand 0.325" thread length flat countersunk head style 40 thread quantity per inch navy special project cadmium screw surface treated unc thread series
2a thread class right-hand 0.216" thread length flat countersunk head style 36 thread quantity per inch passivate screw surface treated unf thread series
3a thread class right-hand 0.327" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.327" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unjf thread series
2a thread class right-hand 1.750" thread length fillister head style 0.031" hole diameter 56 thread quantity per inch cadmium screw surface treated unc thread series