Hex Flange Nuts Grade 8 Zinc-Plated DIN 6923 Heavy Duty Locking Nuts
Manufacturing standard：ISO, GB, JIS, DIN, BS and ANSI standards, or drawings provided by customers.
Materials： iron, carbon steel, alloy steel, copper, stainless steel, plastics, high-temperature alloy, copper alloy, nickel-base alloy, high-strength alloy, corrosion-resistant alloy, etc.
Process： cold heading, punching, turning, milling, wire cutting, etc.
Treatment/Finishing: Brushing、Anodizing、Zinc Plated、Nickel Plated、Sn Plated.
Requirements： No Burrs、Scratches、Dents、Pits
Application： Structural Steel; Metal Building; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating
Packing：bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Hex flange nuts are an essential component in industrial and automotive assemblies, offering integrated washer-like flanges for increased bearing surface and vibration resistance. Manufactured in both metric and inch sizes, they are commonly produced in Grade 5 and Grade 8 carbon steel, as well as stainless steel A2-70 or A4-80 for enhanced corrosion resistance. The flange design eliminates the need for a separate washer, making them ideal for high-efficiency fastening.
One of the most widely used specifications is the DIN 6923 standard, which ensures uniform dimensions, torque performance, and mechanical strength. In many automotive and heavy machinery applications, zinc-plated hex flange nuts are preferred for their moderate corrosion protection and cost-efficiency. They are frequently paired with hex head bolts or flanged bolts in dynamic environments where loosening due to vibration is a concern.
Flange nuts can be either serrated—to provide locking action—or smooth, depending on the assembly’s torque requirements. Serrated flange nuts, for example, are widely used in applications where resistance to back-off is critical, such as in engine mounts or suspension systems.
With reliable threading, precision machining, and adherence to international fastener standards like ISO 4161, these nuts meet both performance and regulatory requirements. Manufacturers often offer customization options including coatings, material grades, and thread pitches to match client specifications in OEM and aftermarket sectors.
For distributors and engineers seeking robust fastening solutions, hex flange nuts represent a balance of reliability, ease of installation, and mechanical integrity across diverse industries.
