3a thread class right-hand 0.569" thread length dished hexagon head style 1.678" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.750" thread length flat countersunk head style 32 thread quantity per inch navy special project passivate screw surface treated unc thread series
2a thread class right-hand 0.250" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 1.750" thread length flat countersunk head style 14 thread quantity per inch cadmium screw surface treated unc thread series