2a thread class right-hand 1.638" thread length fillister head style 40 thread quantity per inch navy special project passivate screw surface treated unc thread series
2a thread class right-hand 0.366" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.313" thread length pan head style 32 thread quantity per inch oxide screw surface treated polycap insert green unc thread series
2a thread class right-hand 0.200" thread length button head style 40 thread quantity per inch passivate screw surface treated polycap nylon green unc thread series
3a thread class right-hand 0.229" thread length flat countersunk head style 24 thread quantity per inch navy special project passivate screw surface treated unjf thread series
3a thread class right-hand 0.968" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unjc thread series