2a thread class right-hand 0.495" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated drilled for lockwire; hole dia. 0.046 - 0.052; distance from hole to shank end 0.125 unf thread series
2a thread class right-hand 0.169" thread length hexagon head style 40 thread quantity per inch navy special project passivate screw surface treated unf thread series
3a thread class right-hand 0.938" thread length flat countersunk head style 32 thread quantity per inch chromate zinc screw surface treated unc thread series
3a thread class right-hand 0.495" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unjc thread series
2a thread class right-hand 0.249" thread length flat countersunk head style 56 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.067" thread length flat countersunk head style 64 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.254" thread length flat countersunk head style 64 thread quantity per inch passivate screw surface treated unc thread series