S-90488A110 0.126" ID x 0.217" OD Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with dual top and bottom serrations that bite into mating surfaces to prevent loosening under dynamic loads
• Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
• Optimized for M3 metric fasteners with precise 0.126" ID and 0.217" OD dimensions for perfect fit and consistent performance
• Enhanced durability and spring retention achieved through Rockwell C42 hardness rating, maintaining clamping force through repeated cycles
• Reliable compliance with RoHS 3 and REACH environmental standards, ensuring safe use in regulated industries
• Space-efficient design with 0.018" thickness and 0.035" overall height, providing maximum security in compact assemblies
• Versatile installation with dual serration technology working effectively on both top and bottom surfaces for flexible application

Professional Applications & Engineering Value

This M3 metric spring lock washer delivers critical engineering solutions for vibration-prone applications where fastener security is paramount. The 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for outdoor equipment, marine applications, and chemical processing environments where moisture and corrosive elements are concerns. The innovative top and bottom serration design creates multiple biting surfaces that significantly enhance vibration resistance compared to standard single-serration washers. This dual-action technology prevents rotational loosening in dynamic assemblies such as motors, pumps, and machinery subjected to constant vibration. The Rockwell C42 hardness ensures the spring lock washer maintains its tension and clamping force through thermal cycling and repeated loading, providing long-term reliability in industrial fastening systems.

Specification Summary & Compliance

This precision metric spring lock washer features exact dimensional specifications including 0.126" ID, 0.217" OD, 0.018" thickness, and 0.035" overall height, engineered for M3 screw applications. Manufactured from 18-8 stainless steel with Rockwell C42 hardness for optimal spring performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for industrial components.