2a thread class right-hand 0.500" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.963" thread length flat countersunk undercut head style 36 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.845" thread length undercut pan no. 2 head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.606" thread length double hexagon w/ hole head style 36 thread quantity per inch nickel screw surface treated unjf thread series
3a thread class right-hand 0.578" thread length double hexagon w/ hole head style 36 thread quantity per inch nickel screw surface treated unjf thread series
3a thread class right-hand 0.478" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unjf thread series