S-91074A180 0.42" ID x 0.65" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through wedge lock design that maintains clamping force under dynamic loads
• Enhanced grip and anti-loosening performance with dual-sided serrations on both top and bottom surfaces
• Exceptional durability and corrosion protection from zinc-flake-coated steel construction
• Reliable hardness performance with Rockwell C46 rating for long-term service life
• Precise M10 metric compatibility with 0.42" ID ensuring perfect fit for standard screw sizes
• Optimized load distribution with 0.65" OD providing stable bearing surface
• Consistent thickness control between 0.090-0.110" for uniform compression and locking action

Professional Applications & Engineering Value

This M10 metric wedge lock washer delivers critical vibration resistance in demanding industrial environments where fastener loosening can compromise safety and performance. The zinc-flake-coated steel construction provides excellent corrosion protection while maintaining the structural integrity needed for heavy-duty applications. Dual-sided serrations create multiple biting edges that dig into both mating surfaces, preventing rotation and maintaining clamp load even under extreme vibration conditions. Engineered for M10 screw systems in machinery, automotive assemblies, and structural frameworks, this washer solves the persistent challenge of maintaining joint integrity in dynamic loading scenarios. The combination of precise metric dimensions and Rockwell C46 hardness ensures consistent performance in high-stress applications where reliability is paramount.

Specification Summary & Compliance

This wedge lock washer features metric dimensions with 0.42" internal diameter and 0.65" outer diameter, designed specifically for M10 screw applications. Manufactured to precise thickness specifications between 0.090-0.110" with top and bottom serrations for maximum locking effectiveness. The washer meets industry standards for hardness at Rockwell C46 and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide.