
Phosphorus Drywall Screw Countersunk Head Screw Fine Thread Galvanized Torx Black Screw. High-Quality Raw Material: Manufactured using C1022 and C1018 steel with strict inspection processes. Versatile Surface Finishes: Available in Zinc Plated, Nickel Plated, Black Oxide, and Black/Grey Phosphate. Wide Size Range: Sizes from M3.5 to M4.8 and lengths from 15mm to 150mm. Flexible Customization: Offers full customization, flexible customization, and minor customization options. Professional Manufacturing: Specialized in fasteners with over 15 years of exporting experience. Custom Packaging: Supports custom packaging for large orders according to customer requirements. Strategic Location: Factory located in Tianjin near Xingang port and airport for punctual delivery. Global Market Reach: Exported to North America, Europe, Africa, and Southeast Asia with long-term client relationships.