2a thread class right-hand 0.375" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.382" thread length flat countersunk head style 28 thread quantity per inch cadmium threads surface treated unf thread series
3a thread class right-hand 0.406" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.625" thread length flat countersunk undercut head style 24 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.609" thread length hexagon head style 1.796" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.500" thread length hexagon head style 1.047" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.484" thread length flat chamfer head style 32 thread quantity per inch thread undercut 0.062 in. wide to root dia. at head passivate surface treated unf thread series