Aluminum Open Type Rivet 1 Standard:DIN and GB 2 Body:aluminum mandrel:steel ... resistance as wellas higher shear and tensile strength.The strongest rivet in the product rang.2)Application,Automotive,Containers,Computer case ... , as follows:MaterialAluminium, steel, stainless steel, CopperTypeopen/close end, dome/flat headFinishingZinc plated, polishing, coated