Tucks Decking Screw is a reliable choice for your outdoor projects. This screw features a countersunk head type, ensuring a smooth finish. It has been tested for salt spray resistance, making it suitable for use in harsh environments. The T17 cutting point provides a precise and clean cut. This pack includes 200 screws, each measuring 4.5 x 80mm in size. The Tucks brand is known for its high-quality hardware products.