S-91812A338 0.15" ID x 0.3" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through dual-sided serrations that bite into mating surfaces, preventing loosening under dynamic loads
• Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Enhanced durability and wear resistance from case hardening to Rockwell C51, maintaining locking performance through repeated use
• Universal compatibility with both inch (No. 6) and metric (M3.5) screw systems, simplifying inventory management
• Reliable locking performance through wedge-action design that increases clamping force as vibration intensifies
• Environmental compliance assurance with RoHS 3 and REACH compliance, meeting strict international regulatory standards
• Precision engineering with consistent dimensions (0.15" ID, 0.3" OD) ensuring proper fit and optimal force distribution

Professional Applications & Engineering Value

This 316 stainless steel wedge lock washer addresses critical vibration-induced failure points in industrial applications where standard fasteners frequently loosen. The top and bottom serrated design creates multiple biting edges that dig into both the fastener and substrate, creating mechanical interference that resists rotational movement. Unlike conventional washers that rely solely on spring tension, the wedge lock mechanism actually increases clamping force as vibration intensifies, making it ideal for heavy machinery, automotive assemblies, and electrical enclosures subject to constant motion. The case hardened surface maintains serration sharpness through installation cycles, while the 316 stainless steel material provides excellent corrosion resistance in marine, chemical processing, and outdoor applications where moisture and corrosive elements are present.

Specification Summary & Compliance

This wedge lock washer features precise dimensional specifications with 0.15" inner diameter, 0.3" outer diameter, and thickness ranging from 0.080" to 0.100". Designed for compatibility with No. 6 (inch) and M3.5 (metric) screw sizes, the component undergoes case hardening treatment to achieve Rockwell C51 hardness for optimal wear resistance. The product fully complies with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, including the latest SVHC requirements as of June 2022, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.