3a thread class right-hand 0.351" thread length hexagon head style 0.302" grip length 24 thread quantity per inch navy special project unjf thread series
3a thread class right-hand 0.503" thread length dished hexagon head style 1.428" grip length 20 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 0.667" thread length hexagon extended washer head style 24 thread quantity per inch phosphate surface treated unf thread series
3a thread class right-hand 0.367" thread length double hexagon extended washer head style 0.802" grip length 32 thread quantity per inch unjf thread series
2a thread class right-hand 2.000" thread length hexagon extended washer head style 11 thread quantity per inch phosphate surface treated unc thread series