S-90127A128 8.4 mm ID x 18 mm OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance thanks to spring lock design that maintains constant tension under dynamic loads
• Enhanced corrosion protection through zinc-plated steel construction for extended service life in harsh environments
• Optimal spring performance ensured by Rockwell C40 hardness rating for consistent elastic recovery
• Precise M8 screw compatibility with 8.4mm internal diameter for secure fit and reliable fastening
• Effective load distribution with 18mm outer diameter providing broad surface contact area
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global market acceptance
• Space-efficient design with 2.0mm thickness and 2.4mm overall height for compact assembly requirements

Professional Applications & Engineering Value

This M8 spring lock washer delivers critical vibration-resistant performance in demanding industrial applications where loosening under dynamic loads poses significant safety and maintenance concerns. The zinc-plated steel construction provides essential corrosion resistance while maintaining the spring tension necessary for persistent locking action. Engineered with Rockwell C40 hardness, the washer maintains its elastic properties through repeated compression cycles, ensuring long-term reliability in machinery, automotive assemblies, and heavy equipment. The precise 8.4mm ID creates a secure interface with M8 fasteners, preventing relative movement while the 18mm OD distributes clamping forces effectively. This combination of material strength and geometric precision addresses the fundamental challenge of maintaining joint integrity in high-vibration environments, reducing maintenance frequency and enhancing operational safety.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 8.4mm internal diameter, 18mm outer diameter, 2.0mm thickness, and 2.4mm overall height, engineered for exact compatibility with M8 fasteners. The manufacturing incorporates zinc-plated steel with Rockwell C40 hardness to ensure consistent performance. The product fully complies with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety, meeting the latest compliance standards as of June 14, 2023, including 235 SVHC substances.