Used on V-22. 3a thread class right-hand 0.438" thread length round extended washer head style 0.141" grip length 32 thread quantity per inch screw, machine, aircraft finish - aluminum epoxy per NAS4006; 160-180 ksi ftu per ams 4928 or ams 4967 unjc thread series
Used on mv-22 (e-nsn isil). 3a thread class right-hand 0.260" thread length undercut pan no. 2 head style 0.188" grip length 32 thread quantity per inch screw, shear, pan head, close tolerance, short thread, six lobe recess, 95 ksi fsu cadmium surface treated unjf thread series
Used on f18 e/f. 3a thread class right-hand 0.469" thread length flat countersunk head style 0.678" grip length 24 thread quantity per inch aluminum surface treated unjf thread series
Used on emer nsn - isil. 3a thread class right-hand 0.403" thread length flat countersunk head style 0.649" grip length 28 thread quantity per inch (navy) screw, 100 degree six lobe reduced head, tension, close TOLERANCE3 cadmium surface treated unjf thread series
Used on firing,aft pylon 01-485-5688;f/a-18e/f. 3a thread class right-hand 0.312" thread length 0.438" grip length 28 thread quantity per inch (navy) screw, close tolerance, aircraft fastner-captive, 100deg reduced head, gear drive recess, A286cres, 95ksi shear; not intended for use in structural applications; use with retaining ring 3M1239 & self-locking plate nut unjf thread series
Used on ac wt and cg im. 3a thread class right-hand 0.323" thread length flat countersunk head style 0.802" grip length 32 thread quantity per inch screw, close tolerance cadmium plated a-286 cres screw shall be identified with green dye or paint on the thread end . coverage may include the chamfer plus one incomplete thread. cadmium surface treated unf thread series
Used on canopy system. 3a thread class right-hand 0.406" thread length oval countersunk head style 0.552" grip length 32 thread quantity per inch unjf thread series
Used on fuselage aft. 3a thread class right-hand 0.469" thread length flat countersunk head style 0.490" grip length 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.501" thread length flat countersunk head style 0.8125" grip length 28 thread quantity per inch passivate surface treated unjf thread series