Ключевые слова: abstract, background, build, closeup, construction, cutting, detail, engineering, equipment, fastener, gray, grey, group, hardware, head, hex, industrial, industry, isolated, item, machined, macro, maintenance, many, metal, metallic, nobody, object, parts, repair, screw, screws, several, shiny, silver, spare, stainless, steel, technology, threaded, threads, three, tool, white, work,