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