Ключевые слова:
Fasteners, Steels, Mechanical properties of materials, Unalloyed steels, Alloy steels, Bolts, Screws (bolts), Studs (fasteners), External-thread fasteners, Temperature, Thread pitch, Dimensions, Designations, Mechanical testing, Tensile strength, Elongation at fracture, Yield stress, Chemical composition, Compositional tolerances, Tempering, Hardness, Physical properties of materials, Surface properties, Approval testing, Proof loading, Tensile testing, Hardness testing, Impact testing, Test equipment, Testing conditions, Test specimens, Specimen preparation, Angles (geometry), Decarburization, Marking, Symbols, Dimensional changes