3a thread class right-hand 0.444" thread length oval countersunk head style 0.865" grip length 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.881" thread length flat countersunk head style 1.990" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.875" thread length flat chamfer head style 0.044" hole diameter 24 thread quantity per inch cadmium surface treated unrc thread series
3a thread class right-hand 0.250" thread length flat chamfer head style 20 thread quantity per inch 2 wrench slots on periphery opposite flats 0.062 inch wide by 0.030 inch deep by 45 degree radius phosphate surface treated unc thread series
