S-91812A466 0.42" ID x 0.65" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with dual-sided serrations that bite into mating surfaces to prevent fastener loosening under extreme conditions
• Exceptional corrosion resistance thanks to 316 stainless steel construction, ideal for harsh industrial and marine environments
• Enhanced durability and wear resistance through case hardening to Rockwell C51 hardness, maintaining locking performance through repeated use
• Precise M10 metric compatibility with 0.42" ID and 0.65" OD dimensions ensuring perfect fit for standard fastener systems
• Reliable performance in heavy-duty applications with consistent 0.070-0.090" thickness providing optimal clamping force distribution
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Versatile installation capability with top and bottom serrations allowing effective performance in various assembly configurations

Professional Applications & Engineering Value

This M10 wedge lock washer delivers critical vibration-resistant performance in demanding industrial applications where fastener security is paramount. The 316 stainless steel construction provides excellent corrosion resistance for harsh environments including chemical processing, marine, and outdoor installations. The dual-sided serrations create multiple biting surfaces that mechanically lock the fastener in place, preventing rotational movement that causes loosening in high-vibration machinery, transportation equipment, and structural assemblies. The case hardened treatment to Rockwell C51 ensures the serrations maintain their sharpness and locking capability through repeated torque cycles, making this metric washer ideal for maintenance-critical applications where disassembly and reassembly are required. This engineering solution addresses the fundamental challenge of maintaining bolt preload in dynamic loading conditions.

Specification Summary & Compliance

This wedge lock washer features precise dimensional specifications with 0.42" inner diameter for M10 screw compatibility and 0.65" outer diameter with consistent 0.070-0.090" thickness. Manufactured from 316 stainless steel with case hardening to achieve Rockwell C51 hardness for optimal performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.