Multigrip Blind Rivets large Head,Multigrip blind rivet,blind rivet,Fastner Multigrip Blind Rivets large Head Szie:D:3.2-4.8mm L:6-30mmMaterial:1.RIVET HEAD - ALUMINIUM / MANDREL - STEEL ZINC PLATED We product Open End Blind Rivet,Closed End Blind Rivet,Multi-grip Rivet,Single-grip Rivet,Peel Type Blind Rivet,Drive Rivet,Grooved Type Blind Rivet an so on.Further information pls contact us.