S-91812A433 0.53" ID x 1" 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 the wedge lock mechanism, preventing fastener loosening in high-stress environments
- Enhanced corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine applications
- Maximum locking power from dual top and bottom serrations that bite into both mating surfaces
- Exceptional durability with case hardening to Rockwell C51 hardness for long service life
- Precise compatibility with 1/2" screws and standardized dimensions (0.53" ID x 1" OD) for reliable fit
- Environmental compliance meeting RoHS 3 and REACH standards for safe industrial use
- Reduced maintenance needs through reliable performance that minimizes assembly failures
Professional Applications & Engineering Value
This 316 stainless steel wedge lock washer addresses critical vibration-induced loosening in heavy machinery, construction equipment, and transportation systems. The dual serration design creates multiple biting points on both contact surfaces, generating consistent locking force that withstands extreme dynamic loads. Case hardened to Rockwell C51, the washer maintains its structural integrity under repeated stress cycles while the 316 stainless steel material provides excellent resistance to chemical corrosion and atmospheric exposure. This combination makes it particularly valuable for offshore installations, chemical processing plants, and outdoor infrastructure where both vibration resistance and corrosion protection are essential for operational safety and reduced maintenance intervals.
Specification Summary & Compliance
Manufactured to precise dimensional standards with 0.53" inner diameter and 1" outer diameter for compatibility with 1/2" fasteners. Features top and bottom serrations and thickness range of 0.120-0.140". The washer undergoes case hardening treatment achieving Rockwell C51 hardness for optimal performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.
