S-95060A411 13 mm ID x 20.5 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 and ensuring long-term joint integrity.
• Excellent corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and extending service life without rust or degradation.
• Precise dimensional compatibility with 13mm ID and 20.5mm OD, designed for M12 screws to ensure easy installation and optimal load distribution.
• Reliable locking performance compliant with DIN 6797 standards, providing consistent quality and secure fastening in industrial assemblies.
• Enhanced durability with a thickness of 0.9-1.2 mm, offering robust spring action to maintain clamping force under stress and temperature variations.
• Environmental compliance with RoHS 3 and REACH regulations, ensuring safe use in regulated industries and reducing legal risks.
• Cost-effective maintenance by reducing the need for frequent retightening, lowering downtime and labor costs in machinery and equipment.

Professional Applications & Engineering Value

This M12 external tooth lock washer is engineered to address common industrial challenges like vibration-induced loosening and corrosion in demanding applications. Made from 18-8 stainless steel, it provides exceptional strength and resistance to moisture, chemicals, and high temperatures, making it suitable for automotive, machinery, and electrical enclosures. The external tooth design ensures positive locking by embedding into surfaces, which is critical for assemblies subject to shock or cyclic loading. Compliant with DIN 6797, this washer delivers reliable performance in metric fastener systems, enhancing safety and reducing maintenance intervals. Its RoHS and REACH compliance further supports use in eco-sensitive sectors, offering peace of mind for engineers focused on durability and regulatory adherence.

Specification Summary & Compliance

This washer meets DIN 6797 specifications with precise dimensions: internal diameter of 13 mm, external diameter of 20.5 mm, and thickness ranging from 0.9 to 1.2 mm. It is designed for M12 screw sizes and features an external tooth location for effective locking. Manufactured from 18-8 stainless steel, it ensures high tensile strength and corrosion resistance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.