These ForgeFix Multi-Purpose Copper Clout Nails are suitable for use with softwood. They have a slightly larger head that distributes the load directly underneath the top of the nail. Thick sheeting will stay firm and secure. They have a copper finish that ensures the highest possible durability. Used in many roofing applications. These ForgeFix Multi-Purpose Clout Nails have the following specification: Size: 30mmGauge: 2.65mmFinish: CopperBag Weight: 1kg Forgefix Multi-Purpose Clout Nails Copper 30 X 2.65Mm (1Kg Bag) in Pink