With this Spax chipboard screw, you achieve durable timber fastenings in outdoor projects such as cladding, decking, and fencing. Made from A2 stainless steel, it provides dependable corrosion resistance against weather exposure. The specialized cut drill point reduces timber splitting and allows immediate driving without pre-drilling in softwoods. Thanks to the partial thread, the top wooden component is clamped tightly against the substructure without gaps. The raised countersunk head with milling ribs sinks smoothly and flush into the wood surface for a neat finish, while the t-star plus T20 drive ensures secure bit engagement without cam-out. Supplied in a box of 200 pieces measuring 4,5X40 mm.