2a thread class right-hand 0.341" thread length flat countersunk head style 20 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 1.750" thread length pan head style 40 thread quantity per inch navy special project cadmium screw surface treated unjc thread series
3a thread class right-hand 1.100" thread length 3.100" overall length 32 thread quantity per inch elongated hole 0.540 min. x 0.550 max. round, closed unjef thread series
3a thread class right-hand 0.397" thread length double hexagon head style 0.802" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
Used on w/s: helicopter, mh-53e; helcopter, ch-53a/d/e. 3a thread class right-hand 0.354" thread length flat countersunk head style 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.511" thread length flat countersunk undercut head style 24 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.477" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.650" thread length flat countersunk head style 32 thread quantity per inch screw, machine, flat head cadmium screw surface treated cadmium surface treated unjf thread series
Used on w/s: aircraft, hx unique; helicopter, mh-53e; helicopter, ch-53a/d/e; aircraft, thunderbolt ii, a-10; aircraft, stratolifter c-135. 3a thread class right-hand 0.683" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.400" thread length undercut hexagon head style 0.115" grip length 28 thread quantity per inch furnished with strip type locking feature on thds unjf thread series
Used on hu-25 main landing gear braking system. 3a thread class right-hand 0.571" thread length hexagon head style 0.339" grip length 24 thread quantity per inch nickel surface treated unjf thread series
