S-97913A113 0.34" ID x 0.53" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with dual-sided serrations that bite into mating surfaces, preventing loosening under dynamic loads
• Enhanced corrosion protection through black zinc-flake coating, extending service life in harsh industrial environments
• Exceptional hardness performance at Rockwell C48, maintaining structural integrity under high clamping pressures
• Dual-standard compatibility for both 5/16" (inch) and M8 (metric) fastener systems, simplifying inventory management
• Precision dimensional control with consistent ID (0.34") and OD (0.53") specifications for reliable fit and function
• Optimized thickness range (0.090-0.110") providing ideal compression characteristics for various joint requirements
• Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

Engineered to solve critical vibration-induced fastener failure in demanding applications, these wedge lock washers utilize top and bottom serrations that create permanent locking action by embedding into both bolt head and workpiece surfaces. The black zinc-flake-coated steel construction provides superior corrosion resistance compared to standard zinc plating, making them ideal for outdoor equipment, automotive assemblies, and heavy machinery exposed to moisture and chemicals. With Rockwell C48 hardness, they maintain their locking capability without deformation under extreme vibration cycles. The dual inch and metric compatibility (5/16" and M8) ensures seamless integration into global manufacturing operations, while the precision dimensions guarantee consistent performance in high-stress bolted joints where reliability is non-negotiable.

Specification Summary & Compliance

These washers feature precise dimensional specifications including ID: 0.34", OD: 0.53", and thickness range: 0.090-0.110". Manufactured to industry standards for wedge lock washers with dual serration technology, they achieve Rockwell C48 hardness for maximum durability. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components.