S-91762A150 5/16"-18 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through serrated locking design prevents loosening under dynamic loads
- Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh environments
- Quick installation efficiency with standard external hex drive and UNC coarse threads
- Reliable thread engagement with Class 2B fit ensuring consistent clamping force
- Heavy-duty performance in right-hand threaded applications requiring maximum holding power
- Regulatory compliance meeting RoHS 3 and REACH standards for industrial safety requirements
- Universal compatibility with standard 1/2" wrench sizes for easy maintenance and replacement
Professional Applications & Engineering Value
This zinc-plated steel locknut delivers critical vibration resistance in demanding industrial applications where safety and reliability are paramount. The serrated locking mechanism creates multiple biting edges that dig into mating surfaces, effectively preventing rotational loosening caused by machinery vibrations, thermal cycling, or dynamic loads. Engineered with UNC coarse threads and Class 2B thread fit, this external hex locknut provides excellent engagement in high-stress assemblies while allowing for faster installation compared to fine-thread alternatives. The combination of zinc-plated corrosion resistance and robust steel construction makes it ideal for automotive components, heavy machinery, construction equipment, and industrial manufacturing applications where environmental exposure and mechanical stress would compromise standard fasteners.
Specification Summary & Compliance
This serrated locknut features precision 5/16"-18 UNC coarse threads with Class 2B thread fit for reliable engagement. Manufacturing specifications include standard 1/2" hex width and 17/64" height dimensions. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide.
