S-90040A145 5/8"-18 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through center lock distorted thread technology that maintains clamping force in high-shock environments
- Enhanced corrosion protection with zinc plating that provides durable surface coverage for extended service life in industrial conditions
- Precise thread engagement with Class 2B fit ensuring consistent performance and reducing the risk of cross-threading during installation
- Optimized for fine thread applications with 5/8"-18 UNF configuration offering superior load distribution and resistance to loosening
- Easy installation and removal using standard wrench tools thanks to the external hex drive design
- Reliable mechanical performance meeting Grade 2 strength requirements for general industrial applications
- Environmental compliance assurance with RoHS 3 and REACH regulations for safe use across global markets
Professional Applications & Engineering Value
This 5/8"-18 UNF locknut with center lock distorted thread technology addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and heavy equipment. The zinc-plated steel construction provides essential corrosion resistance while maintaining the Grade 2 mechanical properties required for demanding applications. The fine thread configuration and Class 2B thread fit ensure precise mating with corresponding male threads, reducing installation torque variations and preventing premature failure. The external hex drive profile allows for efficient installation using standard tools, making it ideal for maintenance operations and production line applications where reliability and repeatability are paramount.
Specification Summary & Compliance
This locknut features 5/8"-18 UNF fine threads with Class 2B thread fit tolerance and right-hand thread direction. Manufactured from zinc-plated steel with standard hex profile measuring 15/16" width and 35/64" height. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory compliance for industrial distribution and use.
