... sample 4.Rohs or SGS aluminum/ steel flat and round head solid rivet factoryA: SpecificationSize: <20mmmaterial: brass,aluminum. stainless steel, ... series has always been one of the top-selling product line of Donguan Jinri metal product Co., Ltd. With more ... and durable rviet seriesOther than rivet,Jinri's major product line includes chipboard screw, wood screw,drywall screw, machine screw, ...