S-90895A207 0.264" ID x 0.374" 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 fastener loosening under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction, extending service life in demanding industrial environments
• Exceptional durability backed by Rockwell C38 hardness rating, maintaining structural integrity under high-pressure applications
• Universal compatibility with both 1/4" and M6 screw sizes, providing flexibility across inch and metric fastening systems
• Reliable performance with precise dimensional control (0.264" ID, 0.374" OD, 0.024" thickness) ensuring consistent seating and load distribution
• Environmental compliance meeting RoHS 3 and REACH standards, suitable for regulated industries and global supply chains
• Optimized spring action with 0.047" overall height design that maintains constant tension and compensates for thermal expansion/contraction

Professional Applications & Engineering Value

Our spring lock washer with dual serration technology addresses critical vibration-induced failure points in industrial machinery, automotive assemblies, and electrical enclosures. The zinc-plated steel construction provides essential corrosion resistance while the top and bottom serrations create multiple locking points that significantly outperform standard flat washers. Engineered with Rockwell C38 hardness, this washer maintains its spring properties under repeated loading cycles, making it ideal for applications where thermal cycling and mechanical stress would compromise ordinary fasteners. The precise 0.264" ID and 0.374" OD dimensions ensure proper fitment with both 1/4" and M6 fasteners, eliminating the need for multiple washer types in mixed-measurement systems.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.264" internal diameter, 0.374" outer diameter, 0.024" thickness, and 0.047" overall height. Manufactured from zinc-plated steel with Rockwell C38 hardness rating, the washer is designed for use with both inch (1/4") and metric (M6) fastener systems. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for industrial components. The dual serration pattern on both top and bottom surfaces ensures maximum locking performance across various application requirements.