... all kind of Rivet Nut.We are manufacturer.Material:Steel , Stainless Steel.we use cold forged technique, not only save materials ... are widely used in furniture, car, ship, electron and other fittings of industrial products. types: flat head ,countersunk head, round ... M6, M8 ,M10 ,M12, inch: 5/32 3/16,1/4,5/16,3/8 . material: steel, stainless steel, brass,aluminium. non-standard part-Pipe Fittings