S-91120A160 6.4 mm ID x 11 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 provided by 18-8 stainless steel construction for long-term reliability in harsh environments
• Precise dimensional compatibility with M6 fasteners (6.4mm ID, 11mm OD) ensuring perfect fit and optimal performance
• Reliable locking performance engineered to DIN 6798 standards for consistent quality and predictable behavior
• Environmental compliance assurance with RoHS 3 and REACH compliance meeting strict regulatory requirements
• Durable material integrity maintaining locking force through repeated assembly cycles without degradation
• Optimized thickness design (0.6-0.8mm) providing sufficient spring action while maintaining compact installation

Professional Applications & Engineering Value

These M6 external tooth lock washers deliver critical vibration-resistant fastening solutions for demanding industrial applications. Manufactured from 18-8 stainless steel, they provide exceptional corrosion resistance in environments exposed to moisture, chemicals, and temperature variations. The external tooth configuration creates multiple biting points that dig into both the fastener head and mounting surface, effectively preventing rotational loosening caused by vibration, shock, or thermal cycling. This design is particularly valuable in industrial machinery, automotive assemblies, and electrical enclosures where maintained clamp load is essential for safety and operational integrity. The DIN 6798 compliance ensures dimensional accuracy and performance consistency, while the metric sizing (6.4x11mm) guarantees proper fit with standard M6 fasteners in European and international equipment designs.

Specification Summary & Compliance

This external tooth lock washer features precise metric dimensions with 6.4mm internal diameter, 11mm external diameter, and 0.6-0.8mm thickness range. Manufactured to DIN 6798 specifications for dimensional accuracy and performance standards. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide. The 18-8 stainless steel material provides consistent mechanical properties and corrosion resistance without additional surface treatments.