S-93925A210 2.2 mm ID x 4.5 mm OD DIN 6797 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through internal tooth design that bites into mating surfaces, preventing fastener loosening under dynamic loads
• Excellent corrosion resistance provided by 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise dimensional compatibility with M2 screws (2.2mm ID) ensures perfect fit and optimal locking performance
• Reliable locking action maintained through controlled thickness variation (0.2-0.4mm) for consistent spring tension
• Standardized quality assurance through DIN 6797 compliance, guaranteeing interchangeability and performance predictability
• Environmental regulation compliance with RoHS 3 and REACH standards, ensuring safe use across global markets
• Space-efficient design with compact 4.5mm OD, suitable for applications with limited clearance requirements

Professional Applications & Engineering Value

These M2 metric tooth lock washers deliver critical vibration-resistant fastening solutions for precision assemblies where reliability is paramount. The 18-8 stainless steel construction provides exceptional corrosion resistance, making these internal tooth washers ideal for electronics, instrumentation, aerospace components, and medical devices exposed to moisture or chemicals. The DIN 6797 compliant internal tooth design creates multiple biting points that dig into both the fastener and base material, effectively preventing rotational loosening caused by vibration, thermal cycling, or dynamic stresses. This engineering solution eliminates the need for additional locking mechanisms, reducing assembly time and maintenance requirements while ensuring long-term joint integrity in demanding industrial applications.

Specification Summary & Compliance

Manufactured to DIN 6797 standards with precise dimensional tolerances: 2.2mm inner diameter for M2 screw compatibility, 4.5mm outer diameter, and thickness ranging 0.2-0.4mm. These tooth lock washers feature internal tooth location design and are constructed from 18-8 stainless steel for optimal performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures unrestricted use across international markets and sensitive applications.