The Tolsen 54122 is a self-drilling metal screw designed to simplify the assembly of metal sheets, profiles, and aluminum components. With a diameter of 4.2 mm and a length of 38 mm, these fasteners feature a Phillips head for a secure grip during installation. Because they are self-tapping, you can drive them directly into the material without the need for pre-drilling, which saves time and effort during your project. The galvanized zinc coating protects the metal from corrosion, ensuring the joints remain stable over time. This set comes in a colored box containing 250 pieces, providing a generous supply for both small repairs and larger construction tasks.