The Reisser Cutter Screws 5 x 30mm Box of 200 is a high-quality box of screws that are designed for superior performance and durability. These are self-countersinking screws with a unique patented design, made from carbon steel for added strength. The screws have been specially designed to give rapid, clean and consistent fixing into various types of material. Ideal for woodworking projects, they offer excellent pull out resistance and extremely tight fixings without splitting the wood.