2a thread class right-hand 0.625" thread length flat chamfer head style 20 thread quantity per inch 0.393-32 ns-3a thd on shoulder passivate surface treated unc thread series
3a thread class right-hand 1.750" thread length flat chamfer head style 0.064" hole diameter 20 thread quantity per inch navy special project unf thread series
3a thread class right-hand 0.615" thread length hexagon head style 0.250" grip length 32 thread quantity per inch nickel surface treated unjf thread series
3a thread class right-hand 1.750" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 1.796" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjf thread series