Metric Class 8.8 All Metal Locknut Din 980V Zinc/Wax Cr3 Plating

Metric Class 8.8 All Metal Locknuts – DIN 980V Strength for High-Vibration Applications

The Metric Class 8.8 all metal locknut manufactured to DIN 980V with Zinc/Wax Cr3 plating is purpose-built for demanding environments where vibration resistance, high strength, and long-term reliability are essential. This prevailing torque locknut uses a deformed top thread section to create consistent friction against the mating bolt, delivering secure locking performance without relying on nylon inserts or chemical thread lockers.

Engineered for High Load and High Heat

Made from Class 8.8 medium carbon steel, these locknuts provide excellent tensile strength and durability, making them ideal for automotive assemblies, heavy equipment, machinery installations, and structural frameworks. Because the locking feature is entirely metal, performance remains stable in high-temperature and high-load conditions where nylon insert locknuts can soften or fail.

DIN 980V Standard for Consistency

The DIN 980V specification ensures precise dimensions, controlled locking torque, and reliable performance across global applications. This makes these locknuts a trusted choice for OEMs, industrial manufacturers, and maintenance teams that require repeatable results and international standard compliance.

Zinc/Wax Cr3 Plating Advantage

What truly sets this locknut apart is the Zinc/Wax Cr3 plating system. The trivalent chromium zinc coating provides strong corrosion resistance in moderate to harsh environments, while the integrated wax dry-film lubricant reduces friction during installation. This helps prevent galling, improves torque consistency, and speeds up assembly. The Cr3 finish is also RoHS-compliant, offering an environmentally responsible alternative to traditional hexavalent chromium coatings.

Key Specifications

• Type: All metal prevailing torque locknut

• Standard: DIN 980V

• Grade: Class 8.8 carbon steel

• Finish: Zinc/Wax Cr3 (trivalent chromium with dry lubricant)

• Thread Types: Metric coarse and fine

• Sizes: M5 through M24 and larger

• Locking Mechanism: Deformed top thread

Built for Critical Fastening

When your application demands secure fastening, corrosion protection, and consistent torque retention, the DIN 980V Class 8.8 all metal locknut with Zinc/Wax Cr3 plating delivers dependable performance you can trust. Need sizing help or bulk pricing? Our fastener specialists are ready to support your project.