Dry Wall Screws Fine Thread Black Phosphate #8x1 (4.2x25mm), made in Taiwan, are high-quality fasteners designed for precise and secure fixing in drywall to metal stud applications. Manufactured from durable steel with a black phosphate coating, they provide good corrosion resistance and smooth driving performance. The fine thread ensures excellent grip in metal surfaces, while the sharp point allows easy penetration without pre-drilling. Supplied in a pack of 900 pieces, these screws are ideal for professional and interior construction use where accuracy, strength, and consistent performance are essential.