Custom Nuts

Welcome to the Custom Nuts category at MJ Anchor (Hebei DuoJia Metal Products Co., Ltd.), your premier technical manufacturer and global supplier located in Handan Yongnian, China’s largest fastener production hub. Drawing on the extensive engineering heritage of our predecessor, the Yonghong expansion screw factory, we specialize in producing high-performance custom nuts—including non-standard hex nuts, specialized sleeve nuts, heavy-duty coupling nuts, and unique slotted or flanged configurations—specifically engineered for complex structural requirements in heavy industry, automotive, and renewable energy sectors. Our custom fastening solutions are precision-manufactured to comply with or exceed rigorous international standards, including GB, DIN, ANSI, and BS, ensuring seamless integration into specialized global engineering blueprints. Fabricated from high-grade Carbon Steel, Alloy Steel, or Stainless Steel (SS304/SS316), our custom nuts are available in strength grades ranging from Class 4.8 and 8.8 up to 10.9 and 12.9 to handle extreme mechanical loads and vibration demands. To guarantee exceptional service life and protection against environmental degradation, we provide professional surface treatments such as Hot-Dip Galvanization (HDG), Yellow Zinc Plating, White Zinc Plating, and Dacromet. With our advanced factory-direct production lines and in-house mold design capabilities, we offer comprehensive custom manufacturing based on your specific technical drawings, supporting diverse applications from oversized industrial machinery to precision electronic enclosures. MJ Anchor is committed to providing reliable, laboratory-tested fastening components that meet the safety and precision demands of modern global infrastructure. For bespoke wholesale pricing, material test reports (MTC), or technical consultations, please contact our expert team at Nancy@mj-anchor.com