S-90895A122 0.252" ID x 0.394" 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 dual top/bottom serration design that maintains secure locking under dynamic loads
- Enhanced corrosion protection with zinc-plated steel construction for extended service life in demanding environments
- Optimized dimensional compatibility with 0.252" ID and 0.394" OD precisely matching No. 12 screw specifications
- Exceptional mechanical durability achieved through Rockwell C42 hardness rating for repeated use without deformation
- Reliable anti-loosening performance from spring lock design that maintains constant tension in high-vibration applications
- Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial use without restrictions
- Precision engineering with 0.028" thickness and 0.047" height ensuring consistent performance across assembly lines
Professional Applications & Engineering Value
This spring lock washer delivers critical vibration-resistant fastening solutions for industrial machinery, automotive assemblies, and electrical enclosures where constant motion threatens joint integrity. The zinc-plated steel construction provides essential corrosion resistance while the dual serration technology (top and bottom) creates multiple biting surfaces that prevent rotational slip and maintain clamp force. Engineered with Rockwell C42 hardness, these washers withstand repeated compression cycles without losing spring tension, making them ideal for maintenance-heavy environments. The precise 0.252" ID and No. 12 screw size compatibility ensures perfect fitment in inch-system applications, from production equipment to structural frameworks where reliable locking is non-negotiable.
Specification Summary & Compliance
Manufactured to inch system standards with precise dimensions: 0.252" ID, 0.394" OD, 0.028" thickness, and 0.047" overall height. Features top and bottom serration pattern specifically engineered for maximum grip. Hardness rated at Rockwell C42 for optimal spring performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmentally responsible manufacturing and unrestricted use in global markets.
