Self Drilling Screws, 120 Pcs Metal Self Tapping, Cross Head Countersunk Flat Head for Metal Sheets, Roofing, Windows, Wood, Plasterboard, 4.2mm x 38mm/45mm/50mm/60mm

• Superb Materials: Self drilling screws for metal are made of high-quality carbon steel material, which has good corrosion resistance, is not easy to rust, break or deform, and has long-lasting durability and stability
• Countersunk Self Drilling Screws: Self-drilling screw design, no need for pre-drilling, can drill, cut and lock at the same time, improve the strength of the screw and the contact object, ensure firm fixation and not easy to slip
• Countersunk Cross Head Screws: Flat head cross screws are designed with deep and clear threads, providing good fastening force in various materials, suitable for narrow areas where the head needs to be flush or below the surface
• Widely Used: Ideak for woodworking projects, wooden structures, wooden houses, decks, fences, terraces, cabinets, manufacturing, construction, engineering, assembly, maintenance, mechanical engineering, etc
• Package Includes: 120 pieces in total, sizes and quantities include: 40 pcs m4.2x50mm, 40 pcs m4.2x60mm, 20 pcs m4.2x45mm, 20 pcs m4.2x38mm, meeting the needs of multiple scenarios and fields

What are the advantages of our self drilling screws? 1. The self-tapping screws are made of high-quality carbon steel material, which is corrosion-resistant, not easy to rust, and has long-term durability and stability. 2. The self-drilling screw design, no need to pre-drill holes, can drill and tighten more effectively, and ensure a firm fixation and not easy to slip. 3. The countersunk cross screw design will not slip when used, and provides good fastening force in various materials to achieve a tight connection. 4. All self-drilling wood screws are packed in a storage box, which is convenient to use, find and carry. 5. Widely used in woodworking industry, wooden furniture, manufacturing, construction, engineering, assembly, maintenance, mechanical engineering and other industries. Features: Material: Carbon Steel Color: Color Zinc Quantity: 120 Pcs Package Includes: 40 Pcs - M4.2x50mm 40 Pcs - M4.2x60mm 20 Pcs - M4.2x45mm 20 Pcs - M4.2x38mm Warranty after sale: If you have any questions, please contact us in time, and we will solve your questions ASAP. Warm Tips: Color may vary slightly from the online image due to your monitor color settings, please refer to the actual product, thank you for your understanding.