S-91074A129 0.28" ID x 0.45" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through dual-sided serrations that create maximum locking force and prevent fastener loosening
• 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 under heavy loads and repeated stress
• Precise dimensional compatibility with 1/4" screw sizes and inch system specifications for reliable fit and function
• Dual-sided serration design on both top and bottom surfaces delivers superior gripping power from multiple angles
• Regulatory compliance assurance with RoHS 3 and REACH standards for safe, environmentally responsible manufacturing
• Optimized thickness range (0.090-0.110") provides consistent performance while accommodating manufacturing tolerances

Professional Applications & Engineering Value

This zinc-flake-coated steel wedge lock washer addresses critical vibration-induced loosening challenges in demanding industrial applications. The top and bottom serrations create a powerful mechanical lock that resists rotational forces and maintains clamping force integrity in heavy machinery, automotive assemblies, and structural frameworks. The Rockwell C46 hardness ensures the washer maintains its structural integrity under extreme pressure and cyclic loading conditions, while the corrosion-resistant zinc-flake coating extends service life in environments exposed to moisture, chemicals, and temperature variations. Engineered specifically for 1/4" screw sizes in inch measurement systems, this wedge lock washer provides reliable, long-term fastening security where vibration resistance is paramount to operational safety and equipment reliability.

Specification Summary & Compliance

This wedge lock washer features precise dimensional specifications with 0.28" ID, 0.45" OD, and thickness ranging 0.090-0.110" for consistent performance in inch system applications. Manufactured from high-grade steel with zinc-flake coating and hardened to Rockwell C46, the component meets industry standards for locking washers with dual serration technology. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, ensuring environmental responsibility and chemical safety in industrial supply chains.