S-97985A590 8.4 mm ID x 15 mm OD DIN 6797 External-Tooth Lock Washers
External-Tooth Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance with external teeth that bite into mating surfaces, preventing loosening under dynamic loads
- Enhanced corrosion protection through zinc plating, extending service life in demanding industrial environments
- Consistent performance with Rockwell C35 hardness ensuring dimensional stability and reliable locking force
- Precise M8 compatibility with 8.4mm ID and 15mm OD dimensions for accurate fit with standard metric fasteners
- Guaranteed quality compliance meeting DIN 6797 specifications for tooth lock washer manufacturing standards
- Environmental responsibility with full RoHS 3 and REACH compliance for safe use in regulated industries
- Optimized thickness range (0.7-0.9mm) providing ideal spring tension while maintaining installation clearance
Professional Applications & Engineering Value
These M8 external tooth lock washers deliver critical vibration-resistant performance in industrial applications where fastener security is paramount. The zinc-plated steel construction provides durable corrosion resistance while the strategically positioned external teeth create positive locking action by embedding into both the fastener head and base material. This design solves common loosening problems in machinery, automotive assemblies, and electrical enclosures subjected to constant vibration or thermal cycling. The DIN 6797 compliance ensures consistent tooth geometry and spring characteristics, making these metric lock washers ideal for precision engineering applications requiring reliable, long-term fastening solutions without periodic retightening.
Specification Summary & Compliance
Manufactured to DIN 6797 specifications with precise dimensional tolerances including 8.4mm internal diameter and 15mm external diameter. The external tooth configuration provides consistent locking performance while the zinc-plated steel material with Rockwell C35 hardness ensures mechanical integrity. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and chemical safety for industrial use across global markets.
