S-91074A329 0.28" ID x 0.53" 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 with wedge lock design that maintains tension under dynamic loads
- Maximum holding power through dual-sided top and bottom serrations that bite into mating surfaces
- Exceptional durability with Rockwell C46 hardness rating for long service life in demanding applications
- Reliable corrosion protection provided by zinc-flake coating system for extended component life
- Precise fitment with 0.28" ID specifically engineered for 1/4" screw applications
- Environmental compliance meeting RoHS 3 and REACH standards for global manufacturing use
- Optimal load distribution with 0.53" OD providing broad surface contact area
Professional Applications & Engineering Value
This zinc-flake-coated steel wedge lock washer delivers critical vibration resistance in high-stress industrial environments where conventional fasteners fail. The top and bottom serrations create positive locking action by embedding into both the bolt head and workpiece surface, preventing rotational loosening under cyclic loading conditions. Engineered for 1/4" screw applications in heavy machinery, automotive assemblies, and structural frameworks, this washer maintains clamp force where vibration, thermal cycling, or dynamic stresses compromise joint integrity. The zinc-flake coating provides superior corrosion resistance compared to standard platings, ensuring reliable performance in harsh operating environments while the Rockwell C46 hardness guarantees the serrations maintain their biting capability through repeated installation cycles.
Specification Summary & Compliance
This inch system wedge lock washer features precise dimensional specifications with 0.28" ID, 0.53" OD, and thickness range of 0.090-0.110". Manufactured from zinc-flake-coated steel with Rockwell C46 hardness, the component delivers consistent performance across industrial applications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for your assemblies and equipment.
