Ключевые слова: background, black, bolt, bolted, carving, chiselling, clench, clinch, clink, closure, collar, connection, detail, embossment, enclosure, engineering, fastener, grey, grounge, guardbow, hard, hardness, high, horizontal, imagery, inner, inside, internal, jam, left, many, metal, pack, ribnut, ring, rivet nut, rivnut, rustic, screw, scrimshaw, span, surface, techtical, texture, thread, top, toreutics, view, wing,