Hex Head Washer Yellow Zinc Plated Roofing Self Drilling M5*120 Screw

Hex Head Washer Yellow Zinc Plated Roofing Self Drilling M5*120 Screw. Self-Drilling Design: Sharp tip and smooth shaft enable easy penetration and fast installation. Corrosion Resistance: Carbon steel core with yellow zinc plating for outdoor durability. Waterproof Sealing: Equipped with transparent PVC washer for effective waterproof sealing. Wide Grade Range: Available in grades 3.6 to 12.9 to meet various strength requirements. Multiple Standards: Compliant with DIN, GB, ANSI, BSW, JIS, and GOST international standards. Customization Support: OEM, ODM, and custom solutions for head shapes, threads, and materials. Fast Delivery: Standard orders ship within 15-25 days depending on complexity. Quality Assurance: 100% QC checks on dimensions, torque, and corrosion resistance.