2a thread class right-hand 0.075" thread length flat countersunk undercut head style 40 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.036" thread length flat countersunk undercut head style 32 thread quantity per inch nickel screw surface treated unc thread series
3a thread class right-hand 0.312" thread length fillister head style 0.700" hole diameter 32 thread quantity per inch zinc screw surface treated unc thread series
3a thread class right-hand 0.250" thread length flat countersunk head style 48 thread quantity per inch passivate screw surface treated unf thread series
3a thread class right-hand 0.344" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series