3a thread class right-hand 0.283" thread length flat chamfer head style 0.044" hole diameter 32 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 1.750" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series
Used on w/s:low altitude navigation & targeting infrared system (lantirn); helicopter, carrier based asw, sh-60f; missile, advanced medium range air-to-air (amraam)/aim120a; support equipment, b-1 aircraft; aircraft (ac-130h, mc-130h, ec-130e, hc-130); helicopter, observation (ahip), oh-58d; missile, air-to-air, amraam; support equipment, b-52 aircraft; teletype, model 28. 3a thread class right-hand 0.375" thread length flat chamfer head style 80 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.281" thread length crowned hexagon head style 32 thread quantity per inch chromium screw surface treated unc thread series
Used on rg-33 auv mrap. 3a thread class right-hand 0.750" thread length headless (setscrew) head style 18 thread quantity per inch passivate surface treated unc thread series
