Ключевые слова: background, bolt, bunch, construction, corrosion, corrosion resistance, damage, deformation, fastener, fastener tool, fix, flat, flat washer, galvanized, gray, grey, group, hardware, heap, industrial, load, load distribution, lot of, low, many, metal, metalworking, nut, pile, plain washer, plate, resistance, screw, screw fastening, silver, small, spread, stack, stainless, stainless steel, stainless washer, standard, steel, surface, threaded, tool, washers, woodworking, work, zinc,