Ключевые слова: background, black, bolt, build, chrome, closeup, concept, concepts, connection, construction, element, engineering, equipment, fastener, fasteners, focus, group, heap, home, horizontal, ideas, image, industrial, industry, instrument, iron, isolated, light, machine, many, material, metal, metallic, nut, objects, part, power, screw, shiny, silver, steel, strength, technology, threads, tool, tools, two, work,