S-91074A331 0.41" ID x 0.83" 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 extreme conditions
• Enhanced corrosion protection with zinc-flake coating that provides excellent durability in harsh industrial environments
• Exceptional hardness rating of Rockwell C46 ensures long-term performance and resistance to deformation under heavy loads
• Precise dimensional compatibility with 3/8" fasteners and 0.41" ID for reliable fit and consistent clamping force
• Optimized contact surface with 0.83" OD providing superior load distribution and joint integrity
• Heavy-duty construction designed for the most demanding applications where standard washers fail
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial use

Professional Applications & Engineering Value

This wedge lock washer delivers critical engineering solutions where vibration-induced fastener failure poses significant safety and maintenance challenges. The zinc-flake-coated steel construction provides exceptional corrosion resistance while maintaining structural integrity in demanding environments. The dual top and bottom serration design creates multiple biting surfaces that mechanically lock the fastener in place, effectively solving vibration loosening problems in heavy machinery, automotive assemblies, and structural applications. With Rockwell C46 hardness, this washer maintains its locking capability through repeated stress cycles, making it ideal for permanent installations where maintenance access is limited. The precise inch-system dimensions ensure compatibility with standard 3/8" fasteners, providing reliable performance in industrial equipment, construction machinery, and transportation applications where vibration resistance is paramount.

Specification Summary & Compliance

This heavy-duty wedge lock washer features precise dimensional specifications including 0.41" ID, 0.83" OD, and 0.090-0.110" thickness range, engineered for optimal performance with 3/8" fasteners. The washer meets industry standards for inch-system components and demonstrates Rockwell C46 hardness for superior mechanical properties. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.