Ключевые слова: antique, bolt, chrome, concept, construction, cut, cutter, cutting, die, engineering, equipment, gear, gears, hardware, heavy, industrial, industry, instrument, iron, isolated, machine, machinery, macro, mechanical, metal, metallic, metalwork, metric, motor, nut, object, old, part, repair, round, screw, shiny, silver, small, spiral, stainless, steel, tap, technology, thread, thread cutting die, threaded, tool, white, work,