Used on F-18. 3a thread class right-hand 0.425" thread length hexagon head style 0.625" grip length 28 thread quantity per inch navy-bolt, shear tensil strength 160-190 ksi unjf thread series
right-hand knurled no. 5 head style 32 thread quantity per inch knurled, head screw features a knurled head with a slotted internal drive passivate surface treated unc thread series
Used on end item nsn: 2320-01-413-3739. 2a thread class right-hand 1.000" thread length hexagon head style 16 thread quantity per inch zinc surface treated unc thread series
3a thread class right-hand cooper's head style 0.500" grip length 28 thread quantity per inch pin-rivet, threaded, shear, 100 deg c' sunk head, hex point drive unjf thread series
3a thread class right-hand 1.150" thread length 1.375" overall length 32 thread quantity per inch trimmed base 0.750 flush unjf stud thread thread series