S-90412A140 6.4 mm ID x 11 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.
• Excellent corrosion resistance due to 316 stainless steel material, ideal for harsh or marine environments.
• Precise fit for M6 screws with a 6.4 mm internal diameter, ensuring easy installation and reliable performance.
• Durable and long-lasting construction with a thickness of 0.6-0.8 mm, providing consistent spring action and reusability.
• Compliance with DIN 6797 standards guarantees dimensional accuracy and interchangeability in metric applications.
• Environmentally safe operation with RoHS 3 and REACH compliance, meeting strict regulatory requirements.
• Versatile industrial use in machinery, automotive, and electrical assemblies where secure fastening is critical.

Professional Applications & Engineering Value

This M6 external tooth lock washer is engineered to address common industrial challenges like vibration-induced fastener failure and corrosion. Made from 316 stainless steel, it offers exceptional resistance to chemicals and moisture, making it suitable for demanding environments such as marine equipment, chemical processing plants, and outdoor machinery. The external tooth design ensures a firm grip by embedding into surfaces, distributing load evenly and maintaining clamp force under stress. Compliant with DIN 6797, it provides reliable performance in metric fastening systems, reducing maintenance needs and enhancing safety in industrial applications like automotive assemblies and electrical enclosures.

Specification Summary & Compliance

This washer features precise dimensions with an ID of 6.4 mm, OD of 11 mm, and thickness of 0.6-0.8 mm, conforming to DIN 6797 standards for metric tooth lock washers. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.