High-Quality Zinc Plating: Each screw in this 420-piece set is zinc plated, providing excellent resistance against corrosion and rust. This ensures long-lasting performance, making them perfect for indoor and outdoor projects where moisture is a concern. Versatile Applications: These yellow chipboard screws are ideal for a wide range of applications, including woodworking, furniture assembly, and general construction. Their reliable grip makes them perfect for use with wood, chipboard, and MDF. Easy to Use: Designed for quick and efficient installation, the screws feature a sharp point and coarse thread, allowing them to easily penetrate materials without splitting. This user-friendly design makes them perfect for both professionals and DIY enthusiasts. Convenient Packaging: The 420 screws are conveniently packaged in a sturdy storage box, keeping them organized and easily accessible. This practical packaging helps prevent loss and damage, ensuring you always have the right screw at hand. Professional Quality for All Users: Whether you’re a professional contractor or a DIY hobbyist, these Dekton screws deliver reliable performance and quality you can trust. The 4x30mm size is perfect for a variety of applications, ensuring versatility in any project., Weight: 2.19139488428 pounds, Manufacturer: Avron Trading Ltd