Metric Class 8.8 Prevailing Torque DIN 6927 Hex Flange Locknut Clear Zinc Cr3 Plating

The Metric Class 8.8 prevailing torque hex flange locknut with DIN 6927 specification and Clear Zinc Cr3 plating is a go-to fastener for professionals who need strong, vibration-resistant, and corrosion-protected locking power in a metric format. These locknuts are designed with a deformed top section that generates prevailing torque, meaning the nut locks into place by friction—no need for washers or adhesives.

This locknut's integrated flange base spreads the load evenly across a wider surface, reducing the chance of damage to softer materials and eliminating the need for a separate washer. The Class 8.8 steel body provides high tensile strength, toughness, and reliability for use in automotive assemblies, heavy machinery, structural connections, and general engineering applications.

The DIN 6927 standard ensures consistency in dimensions and performance, and the clear zinc Cr3 plating enhances corrosion resistance while giving the nut a clean, bright finish. The trivalent chromium (Cr3) coating is not only RoHS-compliant and eco-friendly, but also offers solid protection against oxidation and wear, making this locknut ideal for moderately corrosive or indoor/outdoor environments.

Specifications at a glance:

• Type: Hex flange locknut with prevailing torque

• Grade: Class 8.8 medium carbon steel

• Finish: Clear Zinc Cr3 (trivalent chromium, RoHS-compliant)

• Locking Feature: Top-thread deformation (all-metal prevailing torque)

• Thread Type: Metric coarse and fine threads

• Sizes: M5 to M24 and beyond

• Standard: DIN 6927

When secure fastening matters—especially in vibration-prone or load-critical environments—the DIN 6927 Class 8.8 flange locknut delivers reliable performance without compromise.

Need technical guidance? Contact us today for fast, expert support tailored to your specs.