2a thread class right-hand 0.247" thread length flat countersunk head style 20 thread quantity per inch phosphate screw surface treated unc thread series
2a thread class right-hand 0.097" thread length flat countersunk head style 64 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.214" thread length flat chamfer head style 44 thread quantity per inch navy special project nickel screw surface treated unf thread series
2a thread class right-hand 1.750" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.495" thread length flat countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.203" thread length flat countersunk head style 32 thread quantity per inch anodize screw surface treated unc thread series
3a thread class right-hand 0.358" thread length dished hexagon head style 32 thread quantity per inch passivate screw surface treated weapons system essential unjf thread series
3a thread class right-hand 0.862" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series