Build durable and weather-resistant timber structures with the Spax A2 chipboard screw measuring 4.5 x 45 mm. Crafted from A2 stainless steel, this full-thread screw provides dependable protection against rust and moisture, making it ideal for outdoor woodworking and damp indoor environments. The t-star plus T20 drive ensures a secure bit fit to eliminate slipping and maximize torque transfer during driving. Its countersunk multi head sinks cleanly flush into the wood without damaging surfaces, while the full thread delivers high tensile holding power along the entire length of the fastener.