... ,Steel mandrel 3.Size:4.8x30mm 4.Finishing: ZP Aluminium Blind rivetsType:open end, dome headMaterial: 5050# Aluminium rivet body, ... /box, 20 boxes/ctnStandard: DIN and IFI Other kinds of blind rivets for choice, as follows:MaterialAluminium, steel, stainless steel, ... able to supply some large-flange blind rivets and tite-bulb rivets, and peel type blind rivets, if interested, please feel ...