Spring Washer

Welcome to the Spring Washers category at MJ Anchor (Hebei DuoJia Metal Products Co., Ltd.), your premier manufacturer and global supplier located in Handan Yongnian, the heart of China’s fastener production industry. Drawing on the technical expertise of our predecessor, the Yonghong expansion screw factory, we produce a comprehensive range of spring lock washers—including DIN 127 (Split Lock), DIN 128 (Curved/Wavy), and DIN 6798 (Serrated/Toothed) standards—specifically engineered to prevent fastener loosening caused by mechanical vibration, thermal expansion, or repetitive impact. Our spring washers are precision-manufactured following rigorous international standards, including GB, DIN, ANSI, and BS, providing a critical axial force that maintains tension within bolted joints for automotive, electrical, and structural assemblies. Fabricated from high-grade Spring Steel (65Mn) or Stainless Steel (SS304/SS316), these essential components are heat-treated to ensure optimal elasticity, hardness, and fatigue resistance under high-torque conditions. To guarantee long-term durability and protection against environmental corrosion, our products feature professional surface treatments such as Black Oxide, Yellow Zinc Plating, White Zinc Plating, and Hot-Dip Galvanization (HDG). With our advanced factory-direct production lines, we support custom manufacturing for non-standard thicknesses, specialized outer diameters, and unique material specifications based on your specific engineering blueprints. MJ Anchor is committed to providing reliable, laboratory-tested fastening components that meet the safety and precision demands of modern global infrastructure. For bulk wholesale pricing, material test reports (MTC), or technical consultations, please contact our expert team at Nancy@mj-anchor.com