Ключевые слова: abstract, abudence, art, background, backgrounds, cellular, chrome, closeup, construction, design, equipment, fastener, fastening, femalescrew, fitter, frame, geometric, gray, group, hardware, hole, honeycomb, industrial, industry, internal, internalscrew, machinepart, macro, manufacturing, mechanical, metal, metallic, no, nut, part, pattern, people, same, screw, screwnut, shiny, silver, steel, technology, texture, textured, thread, threading, tool, zinc,