S-97093A162 12.2 mm ID x 21.1 mm OD DIN 128B Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance due to the wave split design, preventing fastener loosening in high-stress environments.
• Enhanced corrosion protection from the zinc-plated steel construction, extending service life in various industrial conditions.
• Exceptional durability and spring action ensured by the Rockwell C44 hardness, maintaining locking force over repeated use.
• Guaranteed dimensional precision with a 12.2mm ID and 21.1mm OD, providing a perfect fit for M12 screws.
• Reliable compliance with the DIN 128B standard, ensuring consistent quality and interchangeability.
• Safe for sensitive applications as it is RoHS 3 and REACH compliant, meeting strict environmental regulations.
• Optimal load distribution from the 2.0mm thickness and 3.4mm overall height, reducing surface pressure and material fatigue.

Professional Applications & Engineering Value

This M12 wave split lock washer is engineered to solve critical issues in industrial fastening, such as joint failure from vibration and corrosion. The zinc-plated steel material provides a robust barrier against rust, making it ideal for machinery, automotive assemblies, and outdoor equipment where moisture is a concern. Its wave split design acts as a spring, applying constant pressure to resist loosening under dynamic loads, which is essential for maintaining secure fastening in high-vibration environments like engines or conveyors. By complying with DIN 128B, it ensures precise dimensions and reliable performance, reducing downtime and maintenance costs. This washer delivers long-term vibration resistance and durability, supporting efficient operations in demanding industrial applications.

Specification Summary & Compliance

This washer features precise dimensions: Inner Diameter of 12.2 mm, Outer Diameter of 21.1 mm, Thickness of 2.0 mm, and Overall Height of 3.4 mm, designed for M12 screw sizes. It conforms to the DIN 128B standard, ensuring high dimensional accuracy and performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility in industrial use.