3a thread class right-hand 0.391" thread length flat countersunk head style 2.115" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.528" thread length hexagon head style 0.188" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 1.700" thread length flat chamfer head style 0.061" hole diameter 28 thread quantity per inch passivate surface treated unrf thread series
3a thread class right-hand 0.750" thread length flat chamfer head style 0.033" hole diameter 32 thread quantity per inch cadmium surface treated unrc thread series