S-93501A027 0.209" ID x 0.354" OD Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance through dual top and bottom serrations that bite into mating surfaces, preventing loosening under dynamic loads
• Exceptional durability with Rockwell C40 hardened steel construction that maintains locking performance in demanding industrial environments
• Universal compatibility with both inch (No. 10) and metric (M5) screw sizes, reducing inventory complexity
• Reliable performance with precise dimensional control (0.209" ID x 0.354" OD) ensuring proper fit and consistent clamping force
• Environmental compliance meeting RoHS 3 and REACH standards for use in regulated industries and international markets
• Optimized spring action from 0.043" overall height design that maintains constant tension despite thermal expansion or contraction
• Reduced maintenance requirements through corrosion-resistant steel construction that extends service life in harsh conditions

Professional Applications & Engineering Value

This spring lock washer delivers critical vibration resistance in demanding mechanical assemblies where loosening can cause equipment failure or safety hazards. The dual serration design on both top and bottom surfaces creates multiple biting points that significantly improve locking performance compared to standard washers. Made from steel with Rockwell C40 hardness, these washers maintain their spring tension and serration effectiveness even under repeated loading cycles. The combination of 0.024" thickness and 0.043" overall height provides optimal deflection characteristics while maintaining sufficient material strength. Ideal for industrial applications including machinery, automotive components, electrical enclosures, and structural assemblies where reliable fastening is essential for operational safety and reduced maintenance intervals.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.209" internal diameter, 0.354" outer diameter, 0.024" thickness, and 0.043" overall height. Designed for compatibility with No. 10 (inch) and M5 (metric) screw sizes, the washer meets industry standards for spring lock washers with dual serration technology. The product is manufactured from hardened steel with Rockwell C40 hardness rating and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for use in regulated industries and international markets.