S-93925A421 6.4 mm ID x 11 mm OD DIN 6797 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with precision internal teeth that bite into mating surfaces to prevent loosening under dynamic loads
• Enhanced durability from Rockwell C42 hardness, maintaining structural integrity under repeated stress cycles
• Reliable corrosion protection through zinc plating, extending service life in demanding industrial environments
• Precision dimensional fit with 6.4mm ID and 11mm OD engineered for exact M6 screw compatibility
• Guaranteed interchangeability through strict DIN 6797 compliance, ensuring consistent performance across applications
• Environmentally responsible manufacturing with full RoHS 3 and REACH compliance for sustainable sourcing
• Optimized load distribution from 0.6-0.8mm thickness profile, reducing surface damage while maintaining clamping force

Professional Applications & Engineering Value

These M6 internal tooth lock washers solve critical vibration-induced fastener failure in industrial assemblies. The zinc-plated steel construction provides essential corrosion resistance for machinery operating in humid or chemically aggressive environments. Precision-formed internal teeth create permanent biting action that eliminates back-off in high-vibration applications like motor mounts, conveyor systems, and power transmission equipment. Engineered to DIN 6797 specifications, these metric lock washers deliver predictable performance in automotive, manufacturing, and heavy equipment applications where safety-critical connections require maintained preload. The hardened Rockwell C42 material withstands deformation under extreme clamping forces, ensuring long-term reliability in demanding fastening scenarios.

Specification Summary & Compliance

Manufactured to DIN 6797 dimensional standards with 6.4mm internal diameter, 11mm outer diameter, and 0.6-0.8mm thickness range. Features internal tooth location design and zinc-plated steel construction with Rockwell C42 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest substance restriction requirements for industrial components.