Zenith Blind Rivet 3.2mm x 15m Deep Ocean is a blind rivet, also known as a pop rivet, which is a type of fastener that is installed from one side of the workpiece., Body of the rivet is made of aluminum, which is a lightweight and corrosion-resistant material., Grip range of the rivet is 4.0mm - 6.0mm, which means that it can be used to fasten materials with a thickness range between 4.0mm and 6.0mm.