Manufacture of high quality carbon steel. Galvanized. Flat head. Knurled body. Rust proof, with sufficient strength, can be used for a variety of solid materials, including plate, steel, aluminum, plastic, glass fiber, etc. Equipped with durable PP storage chassis, with size/type array. The package includes 50 rivet nuts. Metric size is equipped with M6, The supporting nuts are widely used in electrical and industrial products such as automobiles, furniture and decoration, and are suitable for air conditioning, fire protection, gas or pharmaceutical drinks, food and chemical industry, plate factories and other occasions. RUVET nut is made of carbon steel, which is rust proof, corrosion resistant and has a long service life; Galvanized surfaces help prevent surface damage and discoloration, oxidation resistance, healthy lead-free, high strength, deformation free, bearing thread