2a thread class right-hand 2.938" thread length hexagon head style 8.406" grip length 4 thread quantity per inch taper shank diameter 0.125 per ft. from 2.838 in. top dia. to 2.750 in. bottom dia. unc thread series
3a thread class right-hand 0.884" thread length spline extended washer head style 20 thread quantity per inch weapon system essential passivate fastener surface treated unf thread series
Used on gas generator assembly mdl l25250g12. 3a thread class right-hand 0.750" thread length hexagon head style 28 thread quantity per inch unjf thread series
3a thread class right-hand 0.451" thread length hexagon head style 4.110" grip length 32 thread quantity per inch navy special project passivate surface treated unjf thread series
2a thread class right-hand 0.549" thread length hexagon head style 28 thread quantity per inch self-sealing passivate fastener surface treated unf thread series