S-90895A220 1.244" ID x 1.772" 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 with dual top and bottom serrations that bite into mating surfaces, preventing loosening under dynamic loads
- Enhanced corrosion protection through zinc-plated steel construction, extending service life in demanding industrial environments
- Exceptional hardness and durability with Rockwell C38 rating, maintaining structural integrity under high-pressure applications
- Universal compatibility designed for both 1 1/8" (inch) and M30 (metric) screw sizes, simplifying inventory for mixed-system operations
- Reliable performance standards meeting RoHS 3 and REACH compliance, ensuring safe use in regulated industries worldwide
- Optimized dimensional precision with 1.244" ID and 1.772" OD for secure fit and consistent load distribution
- Dual measurement system flexibility supporting both inch and metric applications, reducing procurement complexity for global operations
Professional Applications & Engineering Value
This spring lock washer delivers critical engineering solutions where vibration-induced fastener failure is a primary concern. The zinc-plated steel construction provides essential corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements, while the top and bottom serration design creates positive locking action that outperforms standard flat washers in high-vibration environments. Engineered with Rockwell C38 hardness, it maintains its spring tension and locking capability through repeated loading cycles, making it ideal for heavy-duty industrial equipment, automotive assemblies, construction machinery, and manufacturing systems requiring reliable vibration-resistant fastening solutions for both 1 1/8" and M30 screw sizes.
Specification Summary & Compliance
Precision-engineered with critical dimensions of 1.244" ID, 1.772" OD, 0.071" thickness, and 0.142" overall height for consistent performance. Manufactured to industry standards for spring lock washers with dual serration technology. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial applications.
