S-91106A150 2.7 mm ID x 5.5 mm OD DIN 6797 Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with internal teeth that bite into mating surfaces, preventing loosening under dynamic loads
• Enhanced corrosion protection through black-oxide steel construction, extending service life in demanding environments
• Precision dimensional accuracy with 2.7mm ID and 5.5mm OD ensuring perfect fit for M2.5 fasteners
• Exceptional hardness durability with Rockwell C35 rating maintaining tooth integrity and locking performance
• Industry-standard compliance meeting DIN 6797 specifications for reliable, standardized performance
• Environmental responsibility with RoHS 3 and REACH compliance for safe industrial usage
• Space-efficient design with 0.2-0.5mm thickness profile ideal for compact assemblies

Professional Applications & Engineering Value

This M2.5 metric internal tooth lock washer delivers critical vibration-resistant fastening solutions for precision engineering applications. The black-oxide steel construction provides essential corrosion resistance while the internal tooth configuration creates positive locking action that prevents rotational loosening in high-vibration environments. Engineered to DIN 6797 standards, these washers maintain consistent performance in industrial machinery, electronic enclosures, and automotive assemblies where reliable connections are paramount. The combination of Rockwell C35 hardness and precise dimensional tolerances ensures the teeth maintain their biting action through repeated stress cycles, solving common fastener failure points in dynamic applications.

Specification Summary & Compliance

This internal tooth lock washer features precision dimensions of 2.7mm internal diameter, 5.5mm outer diameter, and 0.2-0.5mm thickness range, manufactured to DIN 6797 specifications for dimensional accuracy and performance reliability. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across industrial sectors while meeting international quality standards for metric locking washers.