• Self-drilling screws for repairing roofs, coverings, and metal or wood structures • Allow drilling and fastening without the need for additional tools, making the job easier for both experts and beginners • Hexagonal head that improves stability and strength during application • Can be screwed in and removed repeatedly, perfect for DIY projects • Integrated rubber washer on the screw prevents water leakage, ideal for boat covers • Made of high-quality steel, they offer corrosion resistance even in humid environments • Suitable for fastening wooden structures, aluminum, armored panels, sandwich panels, perforated panels, galvanized and stainless sheets, boat awnings, and various types of hardware • Recommended for professional, nautical, and domestic use