S-91114A034 0.576" ID x 0.985" OD ASME B18.21.1 External-Tooth Lock Washers
External-Tooth 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 external teeth that bite into mating surfaces, preventing loosening under dynamic loads
- Enhanced corrosion protection with zinc plating that provides durable surface coverage for extended service life
- Consistent performance with Rockwell C40 hardness ensuring reliable spring tension and tooth engagement
- Precise dimensional compatibility with 0.576" ID and 0.985" OD designed specifically for 9/16" screw applications
- Industry-standard compliance meeting ASME B18.21.1 specifications for quality assurance and interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries
- Optimized thickness range (0.037-0.045") providing ideal compression characteristics without compromising structural integrity
Professional Applications & Engineering Value
These external tooth lock washers deliver critical vibration-damping performance in demanding industrial applications where fastener security is paramount. The zinc-plated steel construction combines corrosion resistance with mechanical strength, while the external tooth configuration creates multiple biting points that resist rotational forces in machinery, automotive assemblies, and heavy equipment. The Rockwell C40 hardness ensures the teeth maintain their bite without deformation, providing reliable locking action throughout the fastener's service life. Engineered to ASME B18.21.1 standards, these washers offer predictable performance and dimensional consistency for maintenance, repair, and OEM applications where vibration-induced loosening poses operational risks.
Specification Summary & Compliance
This 9/16" external tooth lock washer features precise dimensional specifications including 0.576" inner diameter, 0.985" outer diameter, and thickness ranging 0.037-0.045". Manufactured to ASME B18.21.1 standards with Rockwell C40 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial use worldwide.
