2a thread class right-hand 0.450" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.099" thread length flat countersunk undercut head style 18 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.219" thread length flat chamfer head style 80 thread quantity per inch passivate or chromate screw surface treated unjf thread series
3a thread class right-hand 0.162" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
2a thread class right-hand 0.470" thread length pan head style 56 thread quantity per inch navy special project passivate screw surface treated unc thread series
2a thread class right-hand 0.600" thread length modified pan head style A32 thread quantity per inch passivate screw surface treated nylon washer 0.229 in o.d. head unf thread series
2a thread class right-hand 1.250" thread length round head style 32 thread quantity per inch navy special project nickel screw surface treated unc thread series