The main functions of hexagonal flange nuts include increasing the contact surface and stress area, reducing the possibility of component damage, preventing loosening, and providing sealing. ‌

Firstly, the design of the hexagonal flange nut increases the contact area between the nut and the workpiece. This design reduces the possibility of component damage as the force area increases and the pressure on the force surface decreases under constant pressure. In addition, flange nuts are usually made of hardened steel and coated with zinc on the surface, which further enhances their durability and corrosion resistance.

Secondly, the design of flange nuts helps to reduce component damage and prevent loosening. Due to the wide flange at one end of the flange nut, pressure can be evenly distributed on the fixed components, thereby reducing the possibility of component damage. Meanwhile, the flange of the flange nut can be serrated to provide a locking effect and prevent the nut from loosening during the tightening process.

Finally, the hexagonal flange nut also has good sealing performance. Due to the installation of a cap on the nut body, the hexagonal flange nut can effectively prevent harmful substances such as rainwater, moisture, and dust from entering the nut body, preventing rusting and extending its service life.