S-97985A550 5.3 mm ID x 10 mm OD DIN 6797 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with external teeth that bite into mating surfaces to prevent loosening under dynamic loads
• Enhanced durability with Rockwell C35 hardness maintaining tooth integrity through repeated assembly cycles
• Reliable corrosion protection through zinc plating that withstands industrial environments
• Precise M5 compatibility with 5.3mm internal diameter ensuring perfect fit for standard metric fasteners
• Optimized load distribution through 10mm external diameter design that minimizes surface damage
• Guaranteed quality standards with full DIN 6797 compliance for consistent performance
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for global supply chain compatibility

Professional Applications & Engineering Value

These M5 external tooth lock washers deliver critical vibration resistance in demanding industrial applications where fastener security is paramount. Manufactured from zinc-plated steel with Rockwell C35 hardness, the external teeth design provides superior bite into both the fastener head and mating surface, creating a mechanical lock that prevents rotational loosening caused by machinery vibration, thermal cycling, or dynamic loading conditions. The DIN 6797 compliance ensures dimensional precision and performance reliability in automotive assemblies, electrical enclosures, machinery frames, and heavy equipment where consistent clamping force must be maintained. The 0.5-0.7mm thickness provides optimal spring tension without compromising installation clearance, making these metric lock washers essential for preventing catastrophic fastener failure in critical connections.

Specification Summary & Compliance

This external tooth lock washer features precise dimensional specifications including 5.3mm internal diameter, 10mm external diameter, and 0.5-0.7mm thickness specifically engineered for M5 fasteners. Manufactured to DIN 6797 standards with Rockwell C35 hardness ensuring consistent mechanical properties. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and global market acceptance for industrial applications requiring certified components.