S-93925A415 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 the internal tooth design that bites into mating surfaces, preventing loosening under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction, extending service life in industrial environments
• Reliable locking performance with Rockwell C42 hardness, maintaining tooth integrity under repeated stress
• Precise M2 screw compatibility with 2.2mm ID and 4.5mm OD dimensions, ensuring perfect fit and uniform load distribution
• Standardized quality assurance through DIN 6797 compliance, guaranteeing dimensional accuracy and interchangeability
• Environmental regulatory compliance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Space-efficient design with 0.2-0.4mm thickness, ideal for compact assemblies without compromising performance

Professional Applications & Engineering Value

This M2 tooth lock washer delivers critical vibration resistance in demanding applications where fastener security is paramount. The zinc-plated steel construction provides essential corrosion protection for machinery exposed to humidity or chemical agents, while the internal tooth location creates positive locking action that prevents rotational loosening in industrial equipment, automotive assemblies, and precision instruments. Engineered to DIN 6797 specifications, these metric lock washers maintain consistent performance in high-cycle applications, eliminating the need for frequent retightening and reducing maintenance downtime. The combination of Rockwell C42 hardness and precise dimensional control ensures the teeth maintain their biting capability through numerous installation cycles.

Specification Summary & Compliance

This tooth lock washer features metric dimensions with 2.2mm internal diameter, 4.5mm outer diameter, and thickness ranging 0.2-0.4mm, specifically designed for M2 screw applications. Manufactured to DIN 6797 standards for dimensional precision and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors without hazardous substance restrictions.