Ключевые слова: abstract, background, bolt, chrome, closely, closeup, concepts, connection, construction, copy, craft, design, equipment, fastener, fastening, gray, group, hardware, hooked, horizontal, ideas, image, industry, iron, metal, metallic, object, objects, ornate, row, screw, shape, sign, silver, stainless, steel, symbol, togetherness, tool, white,