3a thread class right-hand 0.403" thread length flat countersunk head style 0.865" 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 0.302" grip length 32 thread quantity per inch navy special project internal drive ribbed cadmium surface treated unjf thread series
3a thread class right-hand 0.870" thread length dished hexagon head style 1.990" grip length 12 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.267" thread length pan no. 2 head style 80 thread quantity per inch navy special project passivate screw surface treated unf thread series
3a thread class right-hand 0.306" thread length oval countersunk head style 0.178" grip length 32 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 0.275" thread length flat countersunk head style 32 thread quantity per inch oxide film screw surface treated unc thread series