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Hot Sale Black Drywall Screw in Stock. High Strength Material: Carbon steel offers high strength suitable for most situations. Rust Resistance Options: Available in galvanized or stainless steel for wet environments. Self-Tapping Design: Includes drill bit, no pre-drilling required for metal frames. Enhanced Grip Thread: Thread design prevents loosening and ensures firm fixing. Versatile Head Design: Countersunk and flare heads for easy embedding in gypsum board. ISO and GS Certified: Meets international quality and safety standards. Customized Options: Shape and specifications can be customized to requirements. Large Production Capacity: Annual output reaches nearly 8,000 tons with advanced equipment.