Used on f-15 aircraft. 2a thread class right-hand 0.075" thread length flat countersunk head style 32 thread quantity per inch cadmium surface treated unc thread series
2a thread class right-hand 7.880" overall length 20 thread quantity per inch part of a cascade plate cartridge used on condensate pump unc thread series
3a thread class right-hand 0.842" thread length hexagon head style 6.062" grip length 20 thread quantity per inch passivate surface treated unf thread series
Used on fighter aircraft - first (f18 e/f). 3a thread class right-hand 0.500" thread length flat chamfer head style 36 thread quantity per inch unrf thread series
Used on holdback bar, repeat. 3a thread class right-hand 0.519" thread length flat countersunk head style 28 thread quantity per inch (navy) screw, 100 degree cross recessed head, tension, full threaded, self locking unjf thread series
Used on hawkeye. 3a thread class right-hand 0.203" thread length flat countersunk head style 32 thread quantity per inch anodize screw surface treated unc thread series