The SPAX Stainless Steel Screw 4.5 x 50mm comes in a pack of 200 pieces and features a partial thread with a flat countersunk head. The screw is made of stainless steel with a corrosion-resistant finish, making it ideal for outdoor use. The T-star plus T20 drive offers a secure grip, while the 4Cut point helps to reduce splitting and enables the screw to be driven in quickly. This screw is designed for professional contractors and DIY enthusiasts for use in woodworking, fencing, decking, and other outdoor projects.