S-90895A209 0.413" ID x 0.63" OD Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws
Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through spring lock design that maintains tension under dynamic loads
- Enhanced anti-loosening performance with dual serration on both top and bottom surfaces
- Durable corrosion protection provided by zinc-plated steel construction
- Consistent mechanical performance ensured by Rockwell C38 hardness rating
- Universal compatibility with both inch (3/8") and metric (M10) screw systems
- Reliable dimensional accuracy with precise 0.413" ID and 0.63" OD specifications
- Environmental compliance meeting RoHS 3 and REACH standards for industrial use
Professional Applications & Engineering Value
Our zinc-plated steel spring lock washer delivers exceptional engineering value in demanding industrial environments where vibration-induced loosening compromises assembly integrity. The dual serration design on both top and bottom surfaces creates multiple biting points that significantly enhance grip and prevent rotational slippage, making it ideal for machinery, automotive, and heavy equipment applications. The Rockwell C38 hardness ensures the washer maintains its spring properties under repeated loading cycles, while the zinc plating provides essential corrosion resistance in humid or outdoor conditions. This combination of features addresses critical failure points in bolted connections, offering engineers a reliable solution for maintaining vibration-resistant fastening in both inch and metric assembly systems.
Specification Summary & Compliance
This spring lock washer features precise dimensional specifications including 0.413" inner diameter, 0.63" outer diameter, 0.035" thickness, and 0.063" overall height. Engineered for compatibility with both 3/8" and M10 screw sizes, the washer maintains consistent performance through its Rockwell C38 hardness rating. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while meeting international standards for lock washer functionality.
