S-97985A520 3.2 mm ID x 6 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 locking security through precise DIN 6797 compliance ensuring reliable performance in critical assemblies
• Corrosion-resistant protection with zinc plating that extends service life in demanding industrial environments
• Optimized for M3 fasteners with precise 3.2mm ID and 6mm OD dimensions for perfect fit and consistent clamping force
• Exceptional durability backed by Rockwell C35 hardness rating for long-term performance in high-stress applications
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use across regulated industries
• Minimal space requirements with 0.3-0.5mm thickness profile ideal for compact assemblies without compromising performance

Professional Applications & Engineering Value

These M3 external tooth lock washers deliver critical vibration-resistant performance in demanding mechanical systems where secure fastening is paramount. Manufactured from zinc-plated steel to DIN 6797 specifications, the external tooth design creates multiple biting points that dig into both the fastener and mating surface, effectively resisting rotational forces and preventing spontaneous loosening in high-vibration environments. The Rockwell C35 hardness ensures the teeth maintain their biting capability through repeated stress cycles, while the precise metric dimensions guarantee consistent performance in M3 fastener assemblies across automotive, machinery, and industrial equipment applications where reliability cannot be compromised.

Specification Summary & Compliance

This external tooth lock washer features precise dimensional specifications including 3.2mm internal diameter, 6mm outer diameter, and 0.3-0.5mm thickness range. Manufactured to DIN 6797 standards for dimensional accuracy and performance reliability, the component carries full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe integration across various industrial sectors and international markets.