With these Spax chipboard screws, you create strong and durable timber connections for outdoor projects and damp areas. High-grade A2 stainless steel provides dependable protection against rust and harsh weather conditions. The t-star plus T20 drive ensures optimal torque transmission and a secure bit fit to prevent slipping during installation. Thanks to the countersunk multi head, the screw seats cleanly and flush into the wood surface without protruding edges. Furthermore, the full thread design across the 40 mm length delivers high pull-out resistance and maximum holding power in timber and board materials.