S-91812A435 0.67" ID x 1.21" 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 through wedge lock design, preventing loosening in high-stress environments
- Enhanced durability and corrosion resistance with 316 stainless steel construction, ideal for harsh industrial conditions
- Maximum locking security with dual top and bottom serrations that bite into mating surfaces
- Extended service life from case hardened treatment achieving Rockwell C51 hardness
- Versatile compatibility with both inch (5/8") and metric (M16) fastener systems
- Reliable performance in heavy-duty applications thanks to precise dimensional control (0.67" ID, 1.21" OD)
- Environmental compliance assurance meeting RoHS 3 and REACH standards for global applications
Professional Applications & Engineering Value
This 316 stainless steel wedge lock washer delivers exceptional engineering value by solving critical vibration-induced failure points in industrial equipment. The dual serration design creates multiple biting surfaces that maintain constant tension, effectively resisting rotational forces that cause standard washers to fail. The case hardened construction with Rockwell C51 hardness ensures the serrations maintain their sharp edges through repeated stress cycles, while the 316 stainless steel material provides superior corrosion resistance in marine, chemical processing, and outdoor applications. These wedge lock washers are engineered for heavy machinery, transportation equipment, structural assemblies, and any application where vibration resistance is critical to operational safety and maintenance reduction.
Specification Summary & Compliance
This washer features precise dimensional specifications including 0.67" ID, 1.21" OD, and 0.120-0.140" thickness range, compatible with 5/8" and M16 fasteners. The manufacturing process includes case hardening treatment achieving Rockwell C51 hardness for optimal performance. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use in regulated industries and global markets.
