S-91074A221 0.51" ID x 0.77" OD Extreme-Vibration-Resistant Wedge Lock Washers
Extreme-Vibration-Resistant Wedge Lock Washers
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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 prevents loosening under dynamic loads, ensuring long-term joint integrity in high-stress environments.
- Zinc-flake-coated steel construction offers excellent corrosion protection, extending service life in harsh industrial conditions.
- Top and bottom serrations provide enhanced grip on mating surfaces, eliminating the need for additional locking mechanisms.
- Rockwell C46 hardness delivers exceptional durability and wear resistance, maintaining performance under repeated stress.
- Precise M12 metric sizing with 0.51" ID and 0.77" OD ensures easy installation and compatibility with standard fastener systems.
- RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence for global supply chain integration.
- Consistent thickness control (0.090-0.110") allows for reliable clamping force and uniform load distribution.
Professional Applications & Engineering Value
This M12 wedge lock washer is engineered to solve critical vibration-induced loosening in industrial applications such as heavy machinery, automotive assemblies, and construction equipment. The zinc-flake-coated steel material provides robust corrosion resistance, while the top and bottom serrations bite into surfaces to create a permanent lock without damaging components. By combining Rockwell C46 hardness with precise metric dimensions, it ensures reliable performance in high-torque and dynamic environments, reducing maintenance needs and downtime. Ideal for engineers seeking a vibration-resistant solution that meets stringent industry standards for safety and longevity.
Specification Summary & Compliance
This washer features a metric M12 screw size with an inner diameter of 0.51" and outer diameter of 0.77", manufactured to precise thickness tolerances (0.090-0.110"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use. The zinc-flake-coated steel construction and Rockwell C46 hardness confirm its suitability for demanding applications requiring consistent locking performance and durability.
