S-90127A123 1.155" ID x 2.5" OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh industrial environments
• Exceptional spring tension and locking capability with Rockwell C40 hardness, preventing fastener loosening under vibration
• Precise dimensional compatibility with 1 1/8" screw sizes, ensuring perfect fit and optimal load distribution
• Heavy-duty performance with 2.5" outer diameter providing maximum bearing surface for high-stress applications
• Reliable environmental compliance meeting RoHS 3 and REACH standards for safe global industrial use
• Consistent spring action maintained through controlled thickness variation (0.182-0.202") for predictable performance
• Optimal deflection characteristics with 0.243" overall height design for effective tension maintenance

Professional Applications & Engineering Value

This zinc-plated steel spring lock washer delivers critical vibration resistance in demanding industrial applications where fastener security is paramount. The Rockwell C40 hardness ensures the spring maintains its tension under continuous stress cycles, preventing costly downtime from loosened connections. The zinc plating provides essential corrosion protection for machinery operating in humid or chemically aggressive environments. Engineered for 1 1/8" screw sizes with precise inch system measurements, this spring lock washer offers reliable performance in heavy equipment, automotive assemblies, and structural frameworks where vibration-induced failure must be eliminated. The combination of material strength and surface treatment makes it ideal for applications requiring both mechanical reliability and environmental durability.

Specification Summary & Compliance

This spring lock washer features precise inch system dimensions with 1.155" ID, 2.5" OD, and 0.243" overall height. Manufactured to deliver consistent Rockwell C40 hardness for reliable spring performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. Designed specifically for use with 1 1/8" screw sizes in industrial fastener applications requiring superior locking performance and corrosion resistance.