S-91106A142 19 mm ID x 30 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 harsh industrial environments
• Precision M18 compatibility with 19mm internal diameter ensuring perfect fit and optimal load distribution
• Exceptional hardness at Rockwell C35 for maintained tooth integrity and repeated use without deformation
• Guaranteed standardization through DIN 6797 compliance ensuring interchangeability and reliable performance
• Environmental compliance meeting RoHS 3 and REACH regulations for safe use across regulated industries
• Optimized tooth placement with internal location providing maximum locking force while minimizing surface damage

Professional Applications & Engineering Value

These M18 internal tooth lock washers deliver critical vibration resistance in demanding applications where fastener security is paramount. The black-oxide steel construction provides essential corrosion protection while maintaining the structural integrity needed for heavy machinery, automotive assemblies, and industrial equipment. The precisely engineered internal tooth configuration creates multiple biting points that dig into both the fastener and workpiece, effectively resisting rotational forces that cause conventional washers to fail. This DIN 6797 compliant design ensures consistent performance in high-vibration environments like power transmission systems, motor mounts, and production equipment, where loosening could lead to catastrophic failure. The hardened Rockwell C35 material preserves tooth sharpness through multiple installation cycles, making these washers ideal for maintenance applications requiring repeated disassembly and reassembly.

Specification Summary & Compliance

This internal tooth lock washer features precise metric dimensions with 19mm internal diameter, 30mm outer diameter, and 1.2-1.5mm thickness specifically engineered for M18 fasteners. Manufactured to DIN 6797 standards for dimensional accuracy and performance reliability. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.