Used on 80020 422909-3. 3a thread class right-hand 0.374" thread length hexagon head style 32 thread quantity per inch oxide surface treated unf thread series
Used on turbo-shaft aircraft engine; apache helicopter. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.484" grip length
Used on helicopter ch53g fuselage. 3a thread class right-hand 0.370" grip length 7100 double pounds per square inch shear strength cadmium surface treated unjf thread series