Seal end Large head aluminum rivet: Compared with common blind rivet, the diameter of the aluminum cap of the rivet is significantly larger. When the rivet is riveted with the connecting piece, the rivet has a larger contact area and a stronger supporting surface, thus enhancing the torque strength and withstanding higher radial pulling force. Large head aluminum pull nail is suitable for industry: it is suitable for fastening soft and fragile surface materials and oversize holes, increasing brim diameter has special protection application for soft materials.