• Wood construction screws with countersunk head and Torx TX40 drive. • Partial thread allows for a firm connection and adjustment of wooden elements. • Made of galvanized steel with blue passivation and high-performance sliding coating. • Special geometry tip ensures fast grip without the need for pre-drilling. • Milling ribs reduce screwing resistance and protect tool battery life. • Optimized design minimizes the risk of wood splitting and improves surface finish. • Suitable for applications in soft wood, solid wood, coated wood, and roof insulation. • Product with European Technical Assessment (ETA) providing an additional safety advantage.