Keywords: Steels; Fasteners; Corrosion-resistant steels ; Stainless steels; Mechanical properties of materials ; Mechanical testing; Nuts; Threaded fasteners ; Chemical composition; Grades (quality); Temperature; Classification systems; Marking; Designations; Tensile strength; Tensile stress; Hardness; Threads; Austenitic steels; Ferritic steels; Martensitic steels; Intergranular corrosion