S-90895A218 0.906" ID x 1.299" 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 create maximum bite and prevent fastener loosening under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction that provides durable surface resistance in demanding industrial environments
• Exceptional hardness durability with Rockwell C38 rating ensuring consistent performance and reduced wear over extended service life
• Dual measurement system compatibility designed for both inch (7/8") and metric (M22) screw sizes, offering installation flexibility across global projects
• Optimized dimensional precision with 0.906" ID and 1.299" OD ensuring perfect fit and reliable seating on fastener assemblies
• Comprehensive regulatory compliance meeting RoHS 3 and REACH standards for safe use in regulated industrial applications worldwide
• Space-efficient design with 0.106" overall height profile that maintains functionality while minimizing assembly clearance requirements

Professional Applications & Engineering Value

This spring lock washer delivers critical engineering solutions for vibration-prone applications across heavy machinery, automotive assemblies, and industrial equipment. The zinc-plated steel construction provides essential corrosion resistance while maintaining structural integrity in harsh operating conditions. The innovative dual serration design on both top and bottom surfaces creates superior locking action that prevents rotational loosening - a common failure point in dynamic load scenarios. With compatibility for both 7/8" and M22 screw sizes, this washer offers versatile application across international projects requiring either inch or metric fastening systems. The precise dimensional control ensures consistent performance in high-vibration environments where fastener security is paramount to operational safety and equipment longevity.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.906" inner diameter, 1.299" outer diameter, 0.055" thickness, and 0.106" overall height. Manufactured from zinc-plated steel with Rockwell C38 hardness for consistent mechanical performance. Designed for use with 7/8" and M22 screw sizes. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications across global markets.