S-94407A124 5/8"-11 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking that maintains secure fastening in high-motion environments
• Enhanced corrosion protection with black-oxide coated 18-8 stainless steel construction for extended service life
• Reliable high-temperature performance with nylon insert rated for continuous operation up to 220°F (104°C)
• Precision thread engagement with UNC coarse threads and Class 2B fit ensuring consistent, reliable installation
• Industry-standard compatibility with 15/16" width and 3/4" height dimensions for easy integration into existing assemblies
• External hex drive design for straightforward installation using standard wrenching tools
• Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This 5/8"-11 nylon insert locknut delivers critical vibration-resistant performance in demanding industrial environments where secure fastening is paramount. The black-oxide 18-8 stainless steel construction provides exceptional corrosion resistance while the nylon insert locking mechanism creates consistent friction that prevents loosening under continuous vibration and dynamic loads. Engineered with UNC coarse threads and Class 2B thread fit, this locknut ensures precise engagement and reliable performance in machinery, automotive, construction, and manufacturing applications where thermal cycling and mechanical stress are common challenges. The external hex drive facilitates quick installation and removal while maintaining the integrity of the locking feature through multiple use cycles.

Specification Summary & Compliance

This locknut features 5/8"-11 UNC coarse threads with Class 2B thread fit for standard industrial applications. The dimensional specifications include a 15/16" width across flats and 3/4" height. Manufactured from 18-8 stainless steel with black-oxide surface treatment, the component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for industrial fastener applications.