2a thread class right-hand 0.344" thread length watertight head style 32 thread quantity per inch one o-ring; optional chemical blakening of item passivate surface treated unf thread series
Used on spec item. 3a thread class right-hand 0.287" thread length flat countersunk head style 32 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.313" thread length hexagon head style 32 thread quantity per inch anodize primary washer or chromate primary washer surface treated unjf thread series
3a thread class right-hand 0.270" thread length hexagon head style 24 thread quantity per inch navy special project cadmium threads surface treated unjf thread series
