S-97985A530 4.3 mm ID x 8 mm OD DIN 6797 External-Tooth Lock Washers
External-Tooth Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance with external teeth that bite into mating surfaces, preventing loosening under dynamic loads.
- Enhanced corrosion protection from zinc plating, extending service life in harsh industrial environments.
- Precise M4 screw compatibility with a 4.3mm internal diameter, ensuring easy installation and reliable fit.
- High hardness of Rockwell C35 for excellent durability and resistance to deformation under high stress.
- Compliance with DIN 6797 standards guarantees consistent quality, dimensional accuracy, and performance reliability.
- RoHS 3 and REACH compliant for safe, environmentally responsible use in global supply chains.
- Compact 8mm outer diameter and 0.4-0.6mm thickness allows for space-efficient assembly without compromising strength.
Professional Applications & Engineering Value
This M4 external tooth lock washer is engineered to address common industrial challenges like vibration-induced fastener failure and corrosion. Made from zinc-plated steel, it provides a robust barrier against moisture and chemicals, ideal for automotive, machinery, and electrical enclosures. The external teeth design ensures a firm grip on surfaces, distributing load evenly and maintaining secure fastening in high-vibration applications such as motors, pumps, and assembly lines. By meeting DIN 6797 specifications, it offers reliable performance in metric systems, reducing maintenance downtime and enhancing operational safety. Its compliance with RoHS and REACH further supports sustainable manufacturing practices, making it a trusted choice for industrial lock washer needs.
Specification Summary & Compliance
This washer features precise dimensions with an internal diameter of 4.3mm, outer diameter of 8mm, and thickness of 0.4-0.6mm, conforming to DIN 6797 standards for dimensional accuracy and performance. It is manufactured from zinc-plated steel with a hardness of Rockwell C35, ensuring consistent quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its safety and environmental responsibility in industrial applications.
