Used on an/alq-172(v)1/2 common. 3a thread class right-hand 0.190" thread length fillister head style 32 thread quantity per inch passivate surface treated unc thread series
2a thread class left-hand 1.535" thread length flat extended washer head style 40 thread quantity per inch special four pointed end oxide surface treated uns thread series
2a thread class right-hand 1.590" thread length flat chamfer head style 40 thread quantity per inch special dog point with three diameters oxide surface treated uns thread series
2a thread class right-hand 0.190" thread length fillister head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.171" thread length pan head style 40 thread quantity per inch navy special project passivate surface treated unc thread series