S-91074A211 0.42" ID x 0.83" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress environments, ensuring long-term assembly integrity
• Dual-sided serrations on both top and bottom surfaces provide maximum bite and holding power against mating surfaces
• Zinc-flake-coated steel construction offers excellent corrosion resistance for extended service life in harsh industrial conditions
• Rockwell C46 hardness delivers exceptional durability and maintains locking performance under heavy loads
• Precision metric sizing (M10) ensures perfect compatibility with standard metric fastener systems
• RoHS 3 and REACH compliance guarantees environmental responsibility and regulatory adherence for global applications
• Optimized dimensions (0.42" ID, 0.83" OD) provide ideal fit and load distribution for M10 screw applications

Professional Applications & Engineering Value

This M10 wedge lock washer addresses critical vibration-induced failure points in industrial assemblies through its zinc-flake-coated steel construction and dual-sided serration design. The precisely engineered serrations create mechanical interference that resists rotational movement, solving common loosening problems in machinery, automotive, and heavy equipment applications. The top and bottom serration configuration ensures positive locking action regardless of surface orientation, while the Rockwell C46 hardness maintains structural integrity under cyclic loading. This combination of features makes it particularly valuable for vibration-resistant applications where fastener security is paramount, from engine mounts to structural frameworks in demanding industrial environments.

Specification Summary & Compliance

This metric wedge lock washer features precise dimensional specifications including 0.42" internal diameter, 0.83" external diameter, and 0.090-0.110" thickness range, engineered for M10 screw applications. Manufactured to exacting standards with Rockwell C46 hardness for consistent performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (including 224 SVHC substances as of 06/10/2022), meeting the latest environmental and safety regulations for industrial components.