Our black flange nuts are made from high-strength carbon steel with a black oxide finish, offering good durability, wear resistance and anti-rust performance for long-term use.
These hexagon serrated flange nuts feature a built-in washer design with flower teeth on the flange surface, providing strong anti-slip and anti-loosening effects under vibration and heavy load conditions.
Available in sizes M3, M4, M5, M6, M8, they are easy to install and widely compatible with various screws and bolts.
The enlarged flange distributes pressure evenly, protects the surface of your workpiece, and eliminates the need for extra washers during installation.
These non-slip flange nuts are widely used in mechanical equipment, automotive parts, electrical appliances, furniture assembly, industrial machinery and construction projects.
They are ideal for applications that require stable locking, high load capacity and reliable fastening performance.
