S-91106A126 5.3 mm ID x 10 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 to prevent loosening under dynamic loads
• Enhanced corrosion protection through black-oxide steel construction for extended service life in demanding environments
• Precision dimensional control with 5.3mm ID and 10mm OD ensuring perfect fit for M5 fasteners in critical assemblies
• Optimized hardness performance at Rockwell C35 providing durable locking action without material deformation
• Industry-standard compliance with DIN 6797 specifications guaranteeing consistent quality and interchangeability
• Environmental regulation adherence meeting RoHS 3 and REACH requirements for global manufacturing applications
• Reliable anti-rotation security through internal tooth design that maintains clamp load in high-vibration applications

Professional Applications & Engineering Value

This M5 internal tooth lock washer delivers critical vibration-resistant performance in industrial applications where fastener security is paramount. The black-oxide steel construction provides superior corrosion resistance while maintaining the mechanical properties needed for demanding environments. Engineered to DIN 6797 standards, the precision-formed internal teeth create multiple biting points that dig into both the fastener and mating surface, effectively preventing rotation and loosening under extreme vibration conditions. This makes the washer ideal for automotive assemblies, machinery components, electrical enclosures, and precision equipment where maintenance access is limited and reliability is critical. The combination of Rockwell C35 hardness and controlled thickness (0.5-0.7mm) ensures consistent performance without compromising joint integrity or causing surface damage to sensitive materials.

Specification Summary & Compliance

This precision internal tooth lock washer features exact dimensional specifications: 5.3mm internal diameter, 10mm outer diameter, and 0.5-0.7mm thickness range. Manufactured to DIN 6797 standards with Rockwell C35 hardness for optimal performance. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring strict material restrictions.