S-90412A190 17.3 mm ID x 26 mm OD DIN 6797 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through external tooth design that bites into mating surfaces, preventing fastener loosening under dynamic loads
• Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh environments including chemical and marine applications
• Precise dimensional accuracy with 17.3mm ID and 26mm OD ensuring perfect fit for M16 fasteners and consistent performance
• Reliable locking performance engineered to DIN 6797 standards for guaranteed mechanical properties and secure fastening
• Optimized thickness range (1.0-1.4mm) providing ideal spring tension while maintaining material strength
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring environmental safety and global market acceptance
• External tooth configuration maximizes contact area for enhanced grip without damaging softer surface materials

Professional Applications & Engineering Value

This M16 external tooth lock washer delivers critical engineering value in applications where vibration-induced loosening poses significant safety and maintenance challenges. The 316 stainless steel construction provides exceptional corrosion resistance, making it ideal for chemical processing equipment, marine hardware, and food processing machinery where exposure to corrosive elements is common. The precisely engineered external teeth create multiple biting points that dig into both the fastener and bearing surface, distributing locking force evenly while minimizing surface damage. This DIN 6797 compliant design ensures reliable performance in heavy machinery, automotive assemblies, and structural applications where constant vibration would compromise standard flat washers. The metric dimensions and standardized compliance make these washers essential components in European machinery exports and global industrial equipment requiring dependable, long-term fastening solutions.

Specification Summary & Compliance

This tooth lock washer features precise metric dimensions with 17.3mm internal diameter, 26mm outer diameter, and 1.0-1.4mm thickness range, specifically designed for M16 fastener applications. Manufactured to DIN 6797 standards, it ensures consistent mechanical properties and reliable locking performance. The washer is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial components. The external tooth configuration provides optimal locking action while maintaining compliance with international fastener standards for industrial applications.