2a thread class right-hand 0.844" thread length hexagon head style 40 thread quantity per inch oxide screw surface treated with point style u.s. standard cone unf thread series
2a thread class right-hand 0.245" thread length oval countersunk head style 36 thread quantity per inch chromium screw surface treated uns thread series
3a thread class right-hand 0.410" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 1.404" 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 0.210" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.226" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.289" thread length flat countersunk head style 32 thread quantity per inch navy special project cadmium screw surface treated unjc thread series
3a thread class right-hand 0.867" thread length flat countersunk head style 28 thread quantity per inch navy special project cadmium screw surface treated unjf thread series
3a thread class right-hand 0.314" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
3a thread class right-hand 0.401" thread length flat countersunk head style 28 thread quantity per inch navy special project cadmium screw surface treated unjf thread series
2a thread class right-hand 0.621" thread length flat countersunk head style 40 thread quantity per inch cadmium or zinc screw surface treated unc thread series