Ключевые слова: abstract, alloy, aluminum, background, bolt, border, brushed, closeup, construction, copyspace, design, detail, dirty, elements, grunge, head, headbolts, industrial, industry, iron, ironworks, macro, material, mechanic, metal, metallic, nut, object, old, pattern, retro, rough, rust, rusted, rusty, scratched, screw, sheet, space, spiral, spring, stainless, steel, surface, texture, textured, tool, vintage, work, wrench,