Specification for plain hexagonal nut (of Class 3B UNJ thread) Nuts, Hexagonal-head fasteners, Aircraft components, Air transport engineering, UNJ screw threads, Threaded fasteners, Internal-thread fasteners, Fasteners, Threaded components, Alloy steels, Corrosion-resistant steels, Protective coatings, Marking,
Dimensions, Designations, Chromium steels, Molybdenum steels, Nickel steels