This assembly is usually used in situations where tight connection and fixation are required, where the washer protects the surface of the connected parts and enhances the tightness and stability of the connection. The design of the conical locking washer helps prevent the screws from loosening and ensures the durability and safety of the connection. The product is particularly suitable for those situations where high requirements are placed on connection strength and stability, such as mechanical equipment, furniture manufacturing, automotive industry, etc.