S-97913A127 0.51" ID x 1" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through wedge lock design that maintains clamping force under extreme conditions
• Enhanced anti-loosening performance with dual-sided serration technology that bites into both mating surfaces
• Exceptional corrosion protection from black zinc-flake coating that withstands harsh industrial environments
• Reliable hardness and durability with Rockwell C48 rating ensuring long service life in high-stress applications
• Precise M12 metric compatibility with 0.51" ID and 1" OD dimensions for accurate fit and optimal load distribution
• Consistent performance with controlled thickness range (0.120-0.140") ensuring uniform clamping force
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

This M12 metric wedge lock washer delivers critical engineering solutions for industries where vibration-induced fastener failure poses significant safety and maintenance challenges. The black zinc-flake-coated steel construction provides exceptional corrosion resistance while maintaining the structural integrity needed for heavy machinery, automotive assemblies, and construction equipment. The dual-sided serration technology creates multiple biting points on both contact surfaces, effectively preventing rotational loosening under dynamic loads. With Rockwell C48 hardness, this washer maintains its anti-vibration properties through repeated stress cycles, making it ideal for applications in transportation, industrial manufacturing, and infrastructure projects where reliability is paramount. The precise dimensional control ensures consistent performance in metric fastener systems, reducing maintenance intervals and improving operational safety.

Specification Summary & Compliance

This heavy-duty washer features precise dimensional specifications including 0.51" inner diameter, 1" outer diameter, and thickness range of 0.120-0.140" for M12 screw compatibility. Manufactured from black zinc-flake-coated steel with Rockwell C48 hardness, it delivers consistent performance in demanding applications. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across global industrial markets. The wedge lock design with top and bottom serrations provides reliable anti-vibration performance meeting industrial fastener requirements for critical assembly applications.