S-93925A420 5.3 mm ID x 10 mm OD DIN 6797 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with internal teeth that bite into mating surfaces to prevent loosening under dynamic loads
• Enhanced corrosion protection through zinc-plated steel construction for extended service life in industrial environments
• Consistent locking performance with Rockwell C42 hardness ensuring teeth maintain shape and function through repeated use
• Precise M5 compatibility with 5.3mm ID designed specifically for M5 screw applications in metric fastening systems
• Reliable dimensional stability with 10mm OD and 0.5-0.7mm thickness providing optimal surface contact and pressure distribution
• International standard compliance meeting DIN 6797 specifications for quality assurance in global manufacturing applications
• Environmental regulation adherence with RoHS 3 and REACH compliance for use in regulated industries worldwide

Professional Applications & Engineering Value

This M5 internal tooth lock washer solves critical vibration-induced loosening problems in industrial machinery, automotive assemblies, and electrical equipment. The zinc-plated steel construction provides essential corrosion resistance while the precisely positioned internal teeth create a permanent biting action that maintains clamp force despite constant vibration or thermal cycling. Engineered to DIN 6797 standards, these washers deliver predictable performance in high-stress applications where fastener security is non-negotiable. The combination of Rockwell C42 hardness and optimized tooth geometry ensures the locking mechanism remains effective through countless installation cycles, making them ideal for maintenance-critical equipment where disassembly and reassembly are routine.

Specification Summary & Compliance

This washer features precise dimensional specifications including 5.3mm internal diameter, 10mm outer diameter, and 0.5-0.7mm thickness range. Manufactured to DIN 6797 standards with internal tooth configuration, it ensures consistent performance in metric fastening systems. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental requirements for industrial components. The zinc-plated steel material and Rockwell C42 hardness specification guarantee both corrosion resistance and mechanical durability in demanding applications.