S-90895A203 0.146" ID x 0.236" 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, preventing fastener loosening in high-stress applications
- Enhanced locking grip with dual top and bottom serrations that bite into mating surfaces for maximum security
- Durable corrosion protection from zinc-plated steel construction, extending service life in demanding environments
- Precision dimensional compatibility with both No. 6 (inch) and M3.5 (metric) screw sizes for versatile applications
- Optimal hardness performance at Rockwell C38, maintaining structural integrity under repeated loading cycles
- Compliance assurance with RoHS 3 and REACH standards, meeting international environmental regulations
- Dual measurement system readiness supporting both inch and metric fastener requirements in global operations
Professional Applications & Engineering Value
These spring lock washers with dual serration technology provide critical vibration-damping solutions for industrial assemblies where mechanical shocks and dynamic loads threaten joint integrity. The zinc-plated steel construction offers excellent corrosion resistance while the precisely engineered 0.146" ID and 0.236" OD dimensions ensure perfect fitment with both No. 6 and M3.5 screw sizes. The top and bottom serrations create multiple biting surfaces that significantly increase friction between components, effectively preventing rotational slippage in automotive, machinery, and electrical enclosure applications where thermal cycling and vibration are constant challenges. The Rockwell C38 hardness maintains spring tension through countless compression cycles without deformation.
Specification Summary & Compliance
This spring lock washer features precise dimensional specifications including 0.146" internal diameter, 0.236" outer diameter, 0.020" thickness, and 0.035" overall height. Manufactured from zinc-plated steel with Rockwell C38 hardness for optimal performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use in regulated industries worldwide.
