S-97985A560 6.4 mm ID x 11 mm OD DIN 6797 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through external tooth design that bites into mating surfaces to prevent loosening under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in demanding industrial environments
• Precision dimensional accuracy with 6.4mm ID and 11mm OD ensuring perfect fit for M6 fasteners and reliable performance
• Exceptional hardness durability with Rockwell C35 rating maintaining tooth integrity and locking force through repeated use cycles
• Standardized compatibility meeting DIN 6797 specifications for seamless integration into European engineering designs
• Regulatory compliance assurance with RoHS 3 and REACH compliance for global manufacturing and environmental safety requirements
• Optimized thickness range (0.6-0.8mm) providing ideal compression characteristics without compromising structural integrity

Professional Applications & Engineering Value

This M6 external tooth lock washer delivers critical vibration-resistant fastening solutions for industrial applications where dynamic loads and thermal cycling threaten joint integrity. The zinc-plated steel construction provides essential corrosion protection while maintaining the Rockwell C35 hardness required for the external teeth to effectively bite into mating surfaces. Engineered to DIN 6797 standards, this precision washer solves common loosening problems in machinery, automotive assemblies, and electrical enclosures where M6 fasteners require reliable locking performance. The external tooth configuration ensures maximum surface contact and prevents rotation in high-vibration environments, making it ideal for motor mounts, pump assemblies, and heavy equipment where maintenance downtime must be minimized.

Specification Summary & Compliance

This external tooth lock washer features precise dimensional specifications including 6.4mm internal diameter, 11mm outer diameter, and 0.6-0.8mm thickness range, manufactured to DIN 6797 standards for metric fastener applications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial use across global markets. The zinc-plated steel material and Rockwell C35 hardness provide consistent performance meeting international engineering requirements for vibration-resistant locking washers.