... steel, brass,aluminium. Riveting nut(Flat head,Knurled body , Closed end) We use cold forged technique, not only save materials,good ... torque force all reach international standard. Our products are widely used in furniture, car, ship, electron and other fittings of industrial ... flat head ,countersunk head, round body, hex body, open end, closed end, body with ribben, body with groove and so on . also ...