S-91074A328 0.84" ID x 1.54" 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 fastener loosening in high-stress applications
- Dual-sided serration design provides maximum grip on both contact surfaces
- Zinc-flake-coated steel construction offers excellent corrosion resistance and durability
- Precision M20 sizing (0.84" ID, 1.54" OD) ensures perfect fit for metric fastening systems
- High Rockwell C46 hardness maintains structural integrity under heavy loads
- Environmental compliance meets RoHS 3 and REACH standards for safe industrial use
- Consistent thickness control (0.120-0.140") guarantees reliable performance across applications
Professional Applications & Engineering Value
This M20 wedge lock washer with top and bottom serrations delivers exceptional engineering value in demanding industrial environments. The zinc-flake-coated steel construction provides superior corrosion protection while maintaining the mechanical strength needed for heavy machinery, construction equipment, and transportation applications. The unique wedge-lock mechanism creates continuous tension that counters vibrational forces, preventing joint failure in critical assemblies. Dual-sided serrations bite into both the fastener and surface material, creating a positive locking action that outperforms standard flat washers. This makes the washer ideal for vibration-resistant applications where safety and reliability are paramount, from industrial machinery to structural steel connections.
Specification Summary & Compliance
This metric wedge lock washer features precise dimensional specifications with 0.84" inner diameter and 1.54" outer diameter, designed specifically for M20 screw applications. The washer maintains consistent thickness between 0.120-0.140" and achieves Rockwell C46 hardness for optimal performance. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across industrial sectors while meeting international regulatory requirements for hazardous substances.
