Case Hardened Serrated Flange Hex Locknut Clear Zinc Cr3 Plating

Serrated flange case hardened hex all metal locknuts with clear zinc Cr3 plating are engineered to provide superior locking strength and vibration resistance in critical mechanical and structural applications. These high-performance locknuts feature a built-in serrated flange that distributes load evenly while aggressively biting into the mating surface to prevent loosening without the need for washers or additional locking hardware.

The case-hardened steel construction ensures exceptional wear resistance and durability, making these locknuts perfect for high-torque, high-vibration environments like automotive assemblies, construction equipment, heavy machinery, and power transmission systems. The hexagonal body allows for easy installation with standard tools, while the serrated flange eliminates slippage and rotation under load.

The clear zinc Cr3 plating adds a bright, corrosion-resistant finish that protects the nut from rust and oxidation, even in moisture-rich or mildly corrosive environments. Additionally, Cr3 (trivalent chromium) plating is RoHS-compliant, offering an eco-friendly and safer alternative to hexavalent chromium coatings.

Key Specifications:

• Type: Serrated flange hex locknut

• Material: Case hardened steel

• Finish: Clear zinc Cr3 (trivalent chromium)

• Locking Mechanism: All-metal prevailing torque with serrated flange

• Thread Type: Inch (UNC/UNF) and Metric

• Sizes: Typically available from #6-32 to 1-1/2"

• Standards: ASME B18.16.6, DIN 6923

If you need maximum grip, corrosion resistance, and mechanical strength, serrated flange case hardened locknuts with clear zinc Cr3 are your go-to solution.

Ready to upgrade your fastening system? Contact us today for expert help and technical data tailored to your project’s needs.