3a thread class right-hand 0.528" thread length dished hexagon head style 1.812" grip length 20 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.498" thread length flat countersunk head style 0.302" grip length 28 thread quantity per inch dry film lube (threads only) passivate surface treated unjf thread series
3a thread class right-hand 0.498" thread length flat countersunk head style 0.365" grip length 28 thread quantity per inch dry film lubricant (threads only) passivate surface treated unjf thread series
3a thread class right-hand 0.649" thread length spline drive shear head head style 2.365" grip length 20 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.188" thread length flat chamfer head style 0.044" hole diameter 32 thread quantity per inch cadmium surface treated unf thread series