S-90648A235 5/8"-11 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance with nylon insert locking that maintains secure fastening in high-stress applications
- Enhanced torque application thanks to the extra wide hex profile for better grip and reduced tool slippage
- Reliable performance up to 250°F ensuring the nylon insert retains locking properties in elevated temperature environments
- Precise thread engagement with Class 2B UNC coarse threads for easy assembly and consistent fit
- Durable corrosion protection from zinc-plated steel construction, extending service life in harsh industrial conditions
- Right-hand threading compatibility for standard installation processes and equipment maintenance
- Compliance with global safety standards including RoHS 3 and REACH for environmentally responsible manufacturing
Professional Applications & Engineering Value
This heavy-duty 5/8"-11 nylon insert lock nut is engineered to address critical vibration-induced loosening in industrial machinery, automotive assemblies, and construction equipment. The zinc-plated steel material provides excellent corrosion resistance, while the nylon insert creates consistent friction to prevent back-off under dynamic loads. With its extra wide hex profile, technicians can apply higher torque without damaging the fastener, reducing installation time and maintenance costs. The UNC coarse threads and Class 2B thread fit ensure quick alignment and reliable performance in high-vibration environments like power transmission systems and heavy equipment, delivering long-term operational stability.
Specification Summary & Compliance
This locknut features 5/8"-11 UNC coarse threads with Class 2B thread fit for standard inch-system applications. Manufacturing adheres to industry standards for dimensional accuracy, including precise external hex drive specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safe use in industrial settings while meeting environmental requirements for hazardous substance restrictions.
