S-91074A333 0.53" ID x 1" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through dual-sided wedge locking action that prevents loosening under extreme dynamic loads
• Enhanced corrosion protection with zinc-flake coating that provides excellent resistance to industrial environments and chemicals
• Maximum locking force achieved through top and bottom serrations that bite into both mating surfaces for secure fastening
• Exceptional durability with Rockwell C46 hardness rating ensuring long-term performance in heavy-duty applications
• Precision dimensional fit with 0.53" ID specifically engineered for 1/2" screws and 1" OD for optimal load distribution
• Reliable industrial compliance meeting both RoHS 3 and REACH environmental standards for safe usage
• Consistent thickness control between 0.120-0.140" ensuring uniform clamping force and installation reliability

Professional Applications & Engineering Value

This zinc-flake-coated steel wedge lock washer delivers critical vibration resistance in demanding industrial environments where fastener failure is not an option. The dual-sided serration design creates a powerful mechanical lock by biting into both the bolt head/nut and the joint surface, effectively preventing rotational loosening caused by vibration, thermal cycling, and dynamic loads. The zinc-flake coating provides superior corrosion protection compared to standard plating methods, making it ideal for outdoor equipment, heavy machinery, automotive assemblies, and structural applications exposed to harsh conditions. With its Rockwell C46 hardness and precise dimensional specifications, this washer maintains its locking performance through repeated loading cycles, reducing maintenance frequency and preventing costly downtime in critical fastening systems.

Specification Summary & Compliance

This heavy-duty wedge lock washer features inch system dimensions with 0.53" internal diameter for 1/2" fasteners and 1" outer diameter. The washer maintains a controlled thickness range of 0.120-0.140" and achieves Rockwell C46 hardness for optimal performance. Manufactured to industrial standards with top and bottom serrations for maximum locking effectiveness. 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.