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Prime Source 1-5/8" black coarse thread drywall screws deliver reliable fastening for standard drywall applications. The coarse thread design grips drywall effectively while the black finish resists corrosion. Each 1 lb box contains approximately 200 screws, providing ample supply for residential projects. These screws feature a bugle head that countersinks smoothly without damaging the drywall surface. Ideal for securing drywall to wood or metal studs, they meet industry standards for consistent performance and durability on the job site.