3a thread class right-hand 0.578" thread length fillister head style 28 thread quantity per inch navy special project passivate screw surface treated unjf thread series
3a thread class right-hand 0.694" thread length dished hexagon head style 1.178" grip length 20 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 0.750" thread length hexagon extended washer head style 16 thread quantity per inch two slots 180 degrees apart, 0.090 in. nom deep, 0.120 in. nom wide, 0.750 inm mom lg from end opposite the head zinc surface treated unc thread series
3a thread class right-hand 0.457" thread length hexagon head style 0.044" hole diameter 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.700" thread length headless (setscrew) head style 0.040" hole diameter 20 thread quantity per inch cadmium surface treated unc thread series