Used on w/s: aircraft, f-16; aircraft, ov-10a; support equipment, f-111 aircraft. 2a thread class right-hand 0.835" thread length hexagon head style 20 thread quantity per inch unf thread series
2a thread class right-hand 1.009" thread length double hexagon extended washer head style 0.380" grip length 18 thread quantity per inch unc thread series
2a thread class right-hand 0.160" thread length flat countersunk head style 32 thread quantity per inch cadmium fastener surface treated unc thread series
2a thread class right-hand 1.000" thread length watertight head style 24 thread quantity per inch furnished with one siliconerubber o-ring passivate surface treated unc thread series
2a thread class right-hand 0.096" thread length flat countersunk head style 80 thread quantity per inch passivate screw surface treated unf thread series
3a thread class right-hand 0.682" thread length flat chamfer head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
3a thread class right-hand 0.724" thread length flat chamfer head style 40 thread quantity per inch navy special project passivate surface treated unc thread series