Nut DIN 980 M5 8 zinc-nickel black

A self-contracting nut is a nut used in connection elements that are constantly exposed to dynamic loads, especially vibration, which can cause loosening. Contouring in DIN 980 is achieved due to the design of the hole: it can be a narrowed edge of the hole, or a special metal locking ring, depending on the shape. When used in high temperature areas, it is better to choose DIN 980.

Area of application: DIN 980 is used in mechanical engineering, construction, warehouse equipment, lifting equipment, agricultural machinery, tools, etc.

Material of manufacture: high-strength structural alloy steel. The high strength class 8 allows the use of nuts in highly loaded connections.

Coating: Zinc-nickel black. Zinc-nickel coating is an innovative anti-corrosion solution for fasteners that combines high protective ability, mechanical strength and environmental safety.

The key advantages of zinc-nickel coating are:

• Excellent corrosion resistance - more than three times higher than that of ordinary zinc;
• Low risk of hydrogen embrittlement;
• Compatibility with aluminum - does not form galvanic couples and does not cause corrosion in combination with aluminum parts;
• Increased heat resistance - retains its protective properties at changing temperatures and during prolonged operation in high-temperature conditions;
• Mechanical strength - harder than pure zinc, has better resistance to scratches and wear;
• Environmental friendliness - less formation of oxidation products, which means lower zinc emissions into the environment throughout the product's life cycle.
• Aesthetics and invisibility - the coating has a deep black color, which makes it hardly noticeable.

Popular name: Locknut.