Hex Head with Edpm Neoprene Washer Self Tapping China Roofing Screw

Hex Head with Edpm Neoprene Washer Self Tapping China Roofing Screw. Versatile Application: Designed for installing roofs or siding with waterproof metal-to-metal fastening. EPDM Washer Seal: Provides long-lasting weather protection and keeps moisture out. Sharp Pointed Tip: Allows for easier penetration and secure placement during installation. Wide Grade Range: Available in grades 3.6 to 12.9 to meet various strength requirements. Multiple Surface Treatments: Options include Hot Galvanized, Black, Color-Zinc, Blue White Zinc, and Dacromet. International Standards: Compliant with DIN, GB, ANSI, BSW, JIS, and GOST standards. Customization Capability: Offers tailored solutions for unique head shapes, thread types, and materials. 100% Quality Control: Every batch undergoes QC checks for dimensional accuracy and torque resistance.