2a thread class right-hand 0.585" thread length fillister head style 0.044" hole diameter 40 thread quantity per inch navy special project anodize screw surface treated unc thread series
3a thread class right-hand 0.328" thread length flat countersunk head style 32 thread quantity per inch aluminum screw surface treated unf thread series
3a thread class right-hand 3.297" thread length hexagon head style 32 thread quantity per inch navy special project aluminum screw surface treated unjf thread series
3a thread class right-hand 2.188" thread length flat countersunk head style 24 thread quantity per inch passivate screw surface treated unjf thread series
2a thread class right-hand 1.279" thread length pan head style 56 thread quantity per inch navy special project oxide screw surface treated unc thread series