DIN 6331 Flange Nut Overview

DIN 6331 is a standard for flange nuts, commonly used in mechanical and construction industries. The design feature of this nut is a larger flange (a protruding circular edge) on one side, which increases the contact area, helping to distribute the load and enhance stability.

Key Features:

• Flange Design: The DIN 6331 flange nut has a large flange on one side, which increases the contact area with the mating surface, providing better load-bearing capacity.
• Increased Stability: The flange helps prevent the nut from loosening, especially in environments with vibrations or repeated loads, offering improved anti-loosening performance.
• Standardization: DIN 6331 is a German industrial standard (DIN) that ensures uniformity in the nut’s size, material, and performance, making it easier to apply and interchange worldwide.
• Sizes and Materials: DIN 6331 flange nuts are available in various sizes to accommodate different thread specifications. Common materials include steel, stainless steel, and some products are treated for corrosion resistance, such as zinc plating.

Applications:

• Mechanical Equipment: In mechanical equipment and machinery components, DIN 6331 flange nuts are commonly used for connections that require high load-bearing capacity and stability.
• Construction Structures: Used in construction for fastening and securing components, especially in applications subjected to high pressure and vibration.
• Automotive and Marine: In automotive and marine applications, flange nuts enhance the stability of bolt connections and prevent loosening.