Dry Wall Screws Coarse Thread Black Phosphate #8x1-1/2 (4.2x38mm), made in Taiwan, are reliable fasteners designed for strong and secure fixing in drywall and wood applications. Manufactured from durable steel with a black phosphate coating, they offer good corrosion resistance and smooth driving performance. The coarse thread provides excellent holding power, while the sharp point ensures easy penetration without pre-drilling. Supplied in a pack of 450 pieces, these screws are ideal for professional and interior construction use where strength and consistency are required.