3a thread class right-hand 0.378" thread length flat countersunk head style 1.365" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.338" thread length flat countersunk head style 1.490" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.345" thread length dished hexagon head style 0.990" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.624" thread length hexagon head style 0.422" grip length 20 thread quantity per inch passivate surface treated unf thread series