Waterproof Rivets 3.2 x 8mm Blister of 50 - Rapid Uk 5000401, The Rapid waterproof rivets are ideal for use in humid areas. They are made from high grade aluminium and the head of the rivet is made of 1 single part to prevent leakage between the 2 parts when they are fixed together. The rivets are ideal for applications that require a waterproof fixing, such as on waterspouts, gutters, shower panels and greenhouses. Each pack is supplied with a drill bit.Specifications:Size: 4 x 16mm.Grip range: 9-12mm.Pack: Blister of 50. Rapid 5000401 Waterproof Rivets 4 x 16mm Blister of 50