M3.5 Flat Head Self-Tapping Hard Black Cross Ash Phosphorus Drywall Screw Bugle Head Wood Screw

M3.5 Flat Head Self-Tapping Hard Black Cross Ash Phosphorus Drywall Screw Bugle Head Wood Screw. High Strength Grade 12.9: Made from Carbon Steel C1022A with Grade 12.9 strength for durable performance. Corrosion Resistant Finish: Available in Black Phosphated, Yellow Zinc, or Grey Phosphated surface treatments. Wide Size Range: Sizes from M3.5 to M5.5, with lengths ranging from 13mm to 254mm. Versatile Head Styles: Offers Bugle, Pan, Oval, and Wafer head styles for various drywall and wood applications. Compliance with Standards: Meets DIN, GB, ANSI, BSW, JIS, and GOST standards for global compatibility. Customization Available: ODM and OEM services welcome with customized surface treatments and designs. Fast Response Service: Experienced staff reply within 24 working hours to answer all questions promptly.