S-97985A800 10.5 mm ID x 18 mm OD DIN 6798 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through external tooth design that bites into mating surfaces, preventing loosening under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction, extending service life in demanding industrial environments
• Precise dimensional compatibility with M10 fasteners (10.5mm ID, 18mm OD) ensuring perfect fit and optimal load distribution
• Exceptional mechanical strength with Rockwell C35 hardness, maintaining tooth integrity under high clamping forces
• Standardized performance compliant with DIN 6798 specifications, guaranteeing consistent quality and interchangeability
• Regulatory compliance assurance meeting RoHS 3 and REACH environmental standards for global market acceptance
• Reliable locking action with external tooth location providing maximum contact area for secure fastening

Professional Applications & Engineering Value

This M10 external tooth lock washer delivers critical vibration resistance in high-stress assemblies where conventional flat washers fail. The zinc-plated steel construction provides essential corrosion protection while the precisely engineered teeth create multiple biting points that resist rotational forces and maintain clamp load. Engineered to DIN 6798 standards, these washers solve common industrial challenges in automotive, machinery, and structural applications where vibration-induced loosening compromises safety and performance. The external tooth configuration ensures maximum surface contact while the controlled hardness (Rockwell C35) prevents deformation under torque, making them ideal for heavy-duty fastening applications requiring reliable, long-term joint integrity.

Specification Summary & Compliance

Manufactured to exact DIN 6798 specifications with metric dimensions: 10.5mm internal diameter, 18mm outer diameter, and 0.9-1.0mm thickness range. Features external tooth location design and Rockwell C35 hardness for optimal performance with M10 fasteners. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors.