2a thread class right-hand 1.250" thread length hexagon head style 13 thread quantity per inch bonnet bolt threads are loctite coated unc thread series
Used on f-16 acft. 3a thread class right-hand 0.476" thread length flat countersunk head style 0.914" grip length 24 thread quantity per inch screw-low hd, skirt hd cadmium surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style composi lok ii 130 deg. flush sh ear head fastener screw is manufactured from a-286 stainless steel per AMS5732; drive nut is manufactured from mild steel; drive nut has light gray corrosion protective coating; gripe is 0.450" long passivate surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style composi-lok ii 130 deg. flush shear head screw is manufactured from a-286 stainless stell per AMS5732; drive nut is manufactured from mild steel; screw is finished passivatge per qq-p-35; drive nut is light gray corrosion protective coating; grip is 0.500" long passivate surface treated
Used on f/a-18 hornet. 3a nut thread thread class right-hand nut thread 32 nut thread thread quantity per inch hi-lok threaded stud pin sockets provided on both ends of stud; finish, cetyl alcohol lube per hi-shear spec. 305 shouldered unjf nut thread thread series
Used on f/a-18 hornet. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.251" grip length cadmium stem or passivate stem surface treated