S-95615A260 5/8"-18 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 through the durable nylon insert that maintains locking force under dynamic loads
- High-temperature performance with nylon insert rated for applications up to 220°F (104°C)
- Exceptional corrosion protection provided by zinc-plated steel construction for extended service life
- Precise thread engagement with Class 2B thread fit ensuring reliable installation and consistent clamping force
- Grade 5 strength rating delivering proven mechanical performance for demanding industrial applications
- Standard hex profile with 15/16" width for compatibility with common wrenching tools
- Environmental compliance meeting both RoHS 3 and REACH standards for restricted substances
Professional Applications & Engineering Value
This Grade 5 zinc-plated steel nylon insert lock nut addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and heavy equipment. The 5/8"-18 UNF fine thread configuration provides superior thread engagement compared to coarse threads, while the nylon insert creates consistent friction that maintains clamping force without damaging mating threads. The external hex drive style ensures straightforward installation with standard tools, and the zinc plating offers essential corrosion protection for extended service in demanding environments. This combination of features makes it ideal for applications where vibration resistance, temperature stability, and long-term reliability are paramount.
Specification Summary & Compliance
This locknut features 5/8"-18 UNF fine threads with Class 2B thread fit for precision engagement, standard 15/16" hex width and 3/4" height dimensions. Manufactured from Grade 5 steel with zinc plating for corrosion resistance, it incorporates a nylon insert rated for temperatures up to 220°F. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility while meeting industrial fastening standards.
