S-90949A029 5/16"-24 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread locking technology that maintains clamp force in high-motion environments
• Enhanced corrosion protection with black-phosphate steel coating that withstands harsh industrial conditions
• Integrated flange design eliminates need for separate washers while providing wider load distribution surface
• Precision Class 2B thread fit ensures smooth assembly and consistent torque performance
• Heavy-duty Grade G strength rating delivers reliable performance in demanding applications
• External hex drive allows for standard tool compatibility and easy installation
• RoHS 3 compliance meets environmental regulations for global manufacturing applications

Professional Applications & Engineering Value

This Grade G flange locknut with distorted thread technology provides engineered solutions for vibration-intensive applications where fastener loosening poses significant operational risks. The black-phosphate steel construction offers superior corrosion resistance compared to standard finishes, making it ideal for automotive assemblies, heavy machinery, and industrial equipment exposed to environmental elements. The integrated 11/16" flange diameter distributes clamping force over a wider area, reducing surface pressure and preventing damage to connected components. The 5/16"-24 UNF fine thread configuration ensures precise engagement and maintains tension integrity in dynamic loading conditions, while the external hex drive facilitates efficient installation with common tools, reducing assembly time and labor costs in production environments.

Specification Summary & Compliance

This flange locknut features 5/16"-24 UNF fine threads with Class 2B thread fit for precise dimensional accuracy and smooth engagement. The fastener meets Grade G strength classification requirements and incorporates distorted thread locking technology for vibration resistance. Manufacturing complies with RoHS 3 (2015/863/EU) standards for environmental safety, with dimensions including 11/16" flange diameter, 1/2" width, and 23/64" height. The right-hand thread direction and external hex drive style ensure compatibility with standard industrial fastening systems and installation tools.