Black Phosphate Drywall Screws with Fine Thread (self-drilling) Mild Screw Drywall 25mm

Black Phosphate Drywall Screws with Fine Thread (self-drilling) Mild Screw Drywall 25mm. High-Strength Material: Made of C1022A Carbon Steel Grade 8.8 for enhanced durability and strength. Self-Drilling Capability: Features a drill point (Tek screw) for fastening gypsum board to metal keel up to 2.3mm. Corrosion Resistance: Black phosphate coating provides strong corrosion resistance and hardness. Bugle Head Design: Prevents tearing through outer paper layer and ensures secure placement. Customizable Dimensions: Diameter 3.5mm-5.5mm and Length 13mm-150mm available as requested. Multiple Surface Options: Available in Black Phosphate, Gray Phosphate, Galvanized, Nickel Plating, and more. Versatile Thread Types: Offers Fine, Coarse, and Unique Twin-lead threads for different materials. Professional Manufacturing: Produced with high-speed cold heading machines and strict quality inspection.