Ключевые слова: abstract, background, bolt, chrome, closeup, connectors, construction, element, entire, equipment, fastener, galvanized, hardware, head, industrial, industry, length, long, macro, male thread, many, mechanic, metal, metallic, metalwork, nut, object, part, pile, rod, rods, rust, rusty, screw, shadow, shiny, silver, site, steel, stud, studs, suspended, texture, thread, threaded, tilt, tool, trapeze, white,