Products
Flange Nuts are an ingenious fastening solution that combines the function of a standard nut with an integrated, wide washer-like base at one end. At Donghuang, our flange nuts are designed to solve two major engineering challenges: distributing the clamping load over a wider surface area and preventing the nut from loosening in high-vibration environments. By incorporating the washer directly into the nut, Donghuang helps manufacturers reduce the number of separate components in their inventory, speeding up assembly lines and reducing the risk of a missing washer during the installation process.
Donghuang produces both serrated and non-serrated flange nuts to meet different functional requirements. Our Serrated Flange Nuts feature small, angled teeth on the bearing surface that "bite" into the material. This creates a powerful locking mechanism that resists counter-clockwise rotation, making them ideal for automotive chassis, engine mounts, and vibrating industrial machinery. For applications where the surface finish of the substrate must be protected, such as painted panels or delicate electronics, our smooth-base flange nuts provide the necessary load distribution without marking the surface. Both types are manufactured with precision-rolled internal threads for maximum engagement with the bolt.
Because flange nuts are often used in structural and automotive applications, Donghuang utilizes high-tensile carbon steel (Grade 8 and 10) and corrosion-resistant stainless steel (SS304/SS316). To further enhance durability, we offer advanced coatings like Dacromet and Geomet, which provide thin-film corrosion protection without interfering with thread tolerances. This is particularly important for flange nuts used in solar racking systems and outdoor infrastructure, where they are exposed to extreme UV rays and moisture. Our flange nuts are also available in various sizes, from micro-fasteners for electronics to large-scale nuts for heavy construction equipment.
At Donghuang, we believe that efficiency is the key to modern manufacturing. Our flange nuts are engineered to provide a consistent "clamping force-to-torque" ratio, which is essential for automated assembly tools. Our quality control department uses advanced torque-tension testers to ensure that every batch performs according to the specified engineering standards. By choosing Donghuang flange nuts, you are not only getting a superior fastener but also a solution that lowers your total assembly cost. We take pride in our ability to provide customized flange diameters and thicknesses for specific OEM requirements, ensuring that Donghuang remains at the forefront of integrated fastening technology.
