S-97985A111 2.3 mm ID x 4.5 mm OD DIN 6797 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with external teeth that bite into mating surfaces, preventing loosening under dynamic loads
• Enhanced corrosion protection through zinc-plated steel construction, extending service life in industrial environments
• Precision dimensional accuracy with 2.3mm ID and 4.5mm OD ensuring perfect fit for M2 screw applications
• Exceptional hardness durability with Rockwell C35 rating maintaining tooth integrity through repeated installation cycles
• Reliable locking performance through external tooth design that provides consistent spring tension and secure fastening
• Global compliance assurance meeting DIN 6797 standards for consistent quality and interchangeability
• Environmental regulation compliance with RoHS 3 and REACH adherence for safe use across international markets

Professional Applications & Engineering Value

This M2 external tooth lock washer delivers critical vibration-resistant fastening solutions for precision assemblies where metric components require reliable performance. The zinc-plated steel construction provides essential corrosion protection while maintaining the spring tension necessary for secure locking in electronic enclosures, small machinery, and instrumentation. The external tooth configuration ensures maximum surface contact and bite, effectively preventing back-off in applications subject to thermal cycling and mechanical stress. Engineered to DIN 6797 specifications, this washer maintains dimensional stability and locking force consistency across production batches, reducing maintenance intervals and assembly failures in automotive, aerospace, and industrial equipment where M2 fasteners are specified.

Specification Summary & Compliance

This precision external tooth lock washer features dimensional specifications of 2.3mm internal diameter, 4.5mm outer diameter, and 0.2-0.4mm thickness range, manufactured to DIN 6797 standards for metric applications. The component maintains Rockwell C35 hardness for optimal spring performance and tooth integrity. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and international market acceptance for industrial and commercial applications.