Keywords: Steels; Fasteners; Corrosion-resistant steels ; Stainless steels; Mechanical properties of materials ; Mechanical testing; Bolts; Screws (bolts); Studs (fasteners); External-thread fasteners; Threaded fasteners; Chemical composition; Grades (quality); Temperature; Classification systems; Marking; Designations; Tensile strength; Elongation at fracture ; Tensile stress; Hardness; Torsional strength ; Torque; Threads; Tensile testing; Torsion testing; Hardness testing; Austenitic steels; Ferritic steels; Martensitic steels; Intergranular corrosion; Test equipment