Features: Versatile wood construction screw, especially for rafter connections, in frame and stud construction as well as prefabricated construction. The flat head allows for a higher load capacity due to larger head pull-out values. Easy screwing in thanks to sharp threads. The clearance needle enables a resistance-free entry of the screw into the material. Optimal placement and penetration into the material thanks to the self-tapping tip. It has the European Technical Approval ETA-12/0471. STIER products are developed by professionals from crafts and industry, combining high performance with ergonomics. Powerful. Durable. Long-lasting. Thousands of customers trust the best value for money. Experience the STIER product range for yourself.