S-91120A120 3.2 mm ID x 6 mm OD DIN 6798 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
• Excellent corrosion resistance thanks to 18-8 stainless steel construction for long-term reliability in harsh environments
• Precise M3 compatibility with 3.2mm ID ensuring perfect fit and optimal locking performance for M3 fasteners
• DIN 6798 certification guarantees consistent quality and dimensional accuracy for industrial applications
• Environmentally compliant with RoHS 3 and REACH compliance meeting strict international regulatory standards
• Space-efficient design with 6mm OD and 0.3-0.5mm thickness for compact assemblies without compromising performance
• External tooth configuration provides maximum surface contact and superior locking action compared to internal tooth designs

Professional Applications & Engineering Value

This M3 external tooth lock washer delivers critical vibration-resistant fastening solutions for demanding industrial applications. Manufactured from 18-8 stainless steel, it provides exceptional corrosion resistance in harsh environments including chemical processing, marine applications, and outdoor equipment. The external tooth configuration ensures positive locking action by biting into both the bearing surface and fastener head, effectively preventing rotational loosening caused by vibration and thermal cycling. This DIN 6798 certified metric washer is specifically engineered for M3 fastener systems where reliable, maintenance-free locking performance is essential. The combination of precise dimensional control and premium material selection makes this tooth lock washer ideal for automotive assemblies, electrical enclosures, machinery, and precision instruments where vibration-induced failure is not an option.

Specification Summary & Compliance

This external tooth lock washer features precise dimensions with 3.2mm ID, 6mm OD, and 0.3-0.5mm thickness, manufactured to DIN 6798 specifications for dimensional accuracy and performance consistency. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. Constructed from 18-8 stainless steel, this metric washer delivers reliable performance while meeting international standards for industrial fastening applications requiring secure locking capabilities.