holliow rivet Material:Aluminum,steel or brass Finish:plain,chromated,nickel plated and etc. low price and high quanlity Features:DIN24 One Piece Aluminum Hollow Rivet1.Material:C1010-C1018 grade 4.8, aluminum, brass, amd etc as per your need.2.Standard:DIN24 or as other standard as per your need. 3.Surface Finish:nickel plating, chromated, gold plating, and etc as per your need.4. A variey of ...