Ключевые слова: abstract, background, board, bolt, brown, build, circle, collection, construction, copper, cross, dirty, fasteners, fastening, gray, hardware, head, industry, iron, machine, macro, mechanic, metal, nut, object, old, oval, pattern, rivet, rust, rusty, scrap, screw, shop, slot, stainless, steel, tool, vintage, white, work, workshop, wrench, zinc,