S-94831A700 5/8"-11 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision serrations that create a permanent locking action, preventing loosening in high-stress applications
• Enhanced corrosion protection with zinc-plated steel construction, extending service life in demanding industrial environments
• Optimal load distribution thanks to the 1 9/32" flange diameter, reducing surface pressure and preventing material damage
• Reliable coarse thread engagement with UNC 5/8"-11 threading for faster assembly and reduced cross-threading risks
• Precise Class 2B thread fit ensuring smooth installation and consistent clamping force in production environments
• External hex drive compatibility with standard tools for efficient installation and maintenance operations
• Full regulatory compliance meeting both RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This zinc-plated steel flange lock nut delivers critical performance advantages in vibration-prone applications where safety and reliability are paramount. The serrated locking design bites into mating surfaces, creating permanent resistance against rotational forces in machinery, automotive, and structural assemblies. Unlike standard nuts that require additional locking components, this integrated flange nut combines bearing surface and locking mechanism in one unit, reducing assembly time and part count. The UNC coarse thread profile ensures rapid installation in production environments while maintaining Class 2B thread fit precision. The zinc plating provides sacrificial protection against corrosion, making it suitable for outdoor equipment, material handling systems, and industrial machinery where environmental exposure is a concern.

Specification Summary & Compliance

This heavy-duty flange lock nut features 5/8"-11 UNC coarse threads with Class 2B thread fit for consistent engagement and reliable performance. The external hex drive (15/16" width) accommodates standard wrenching tools, while the 1 9/32" flange diameter and 0.15" thickness provide optimal load distribution. Manufacturing complies with industry standards for inch-system fasteners, and the product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for hazardous substance restrictions.