Nut DIN 985 M5 8 zinc-nickel black

A self-locking nut is a nut used in fasteners that are constantly subjected to dynamic loads, particularly vibration, which can cause them to loosen. In DIN 985 nuts, the locking mechanism is provided by a nylon ring that is threaded as the nut is tightened.

Applications: DIN 985 is used in mechanical engineering, construction, warehouse equipment, lifting equipment, agricultural machinery, tools, etc.

Material: High-strength alloy structural steel. The high strength class 8 allows these nuts to be used in high-load fasteners.

Coating: Black zinc-nickel. The zinc-nickel coating is an innovative anti-corrosion solution for fasteners, combining high protective performance, mechanical strength, and environmental safety.

The key advantages of the zinc-nickel coating are:

• Excellent corrosion resistance—more than three times higher than that of conventional zinc;
• Low risk of hydrogen embrittlement;
• Compatibility with aluminum—does not form galvanic couples and does not cause corrosion when combined with aluminum parts;
• Enhanced heat resistance—retains its protective properties under temperature fluctuations and during prolonged operation in high-temperature conditions;
• Mechanical strength—harder than pure zinc, with better resistance to scratches and wear;
• Environmental friendliness—less formation of oxidation products, resulting in lower zinc emissions into the environment throughout the product’s entire life cycle.
• Aesthetics and discreet appearance—the coating has a deep

Common name: Locknut.