
All Size Customized Black Drywall Screw Gypsum Screw. Customized Sizes and Shapes: Available in all sizes with customized shapes to meet specific project requirements. High Strength Carbon Steel: Material offers high strength suitable for most general construction situations. Rust-Proof Options: Stainless steel and galvanized options available for wet or humid environments. Self-Tapping Design: Self-tapping type includes drill bit, eliminating the need for pre-drilling holes. ISO and GS Certified: Products meet international quality standards including ISO and GS certifications. Anti-Loosening Thread: Special thread design enhances grip and prevents the screw from loosening over time. Versatile Head Design: Features common flare and countersunk heads for easy embedding into gypsum board surfaces. Multi-Standard Production: Manufactured according to national, German, American, and Japanese standards.