








The flange nut, also revered as the washer nut, serrated nut, or hexagonal flange nut, boasts a distinctive wide flange at one end, designed to function as an integrated washer. Below is a comprehensive exploration of the eminent flange nut:
1. Structure and Design: Flange nuts primarily exhibit a hexagonal silhouette crafted from robust, hardened steel, often enhanced with a galvanized finish. The wide flange significantly augments the contact surface area with the workpiece, aiding in the uniform distribution of the nut's pressure across a broader plane. This innovation not only mitigates potential damage to components but also amplifies the stability and integrity of the connection.
2. Materials and Specifications: Flange nuts are manufactured from an array of materials, including A3 low carbon steel, durable 35K high-speed steel wire, and resilient 45 steel, with hardness classifications ranging from level 4 to level 12. Widely recognized specifications encompass M5, M6, M8, M10, M12, and M16, with sizes above M20 being less common and typically featuring flat flanges (flanges devoid of teeth).
3. Features and Uses: Distinguished by their anti-slip tooth pattern design, flange nuts enhance friction, effectively preventing loosening. They find frequent application in scenarios demanding exceptional tightness and stability, such as in pipeline connections, metal plate fastening, elevator production, and marine engineering. The serrated flange inherent in these nuts offers a secure locking mechanism to avert fastener loosening due to vibrational forces.
4. Advantages: Flange nuts offer the convenience of adjustment and disassembly post-installation, providing exceptional flexibility. They skillfully reduce preload force by leveraging residual rotational resistance, which ensures a steadfast and enduring fastening performance.
In conclusion, flange nuts are indispensable in scenarios requiring elevated tightening force and stability. Their exceptional design and outstanding performance make them a critical component in diverse industrial applications.