S-93083A106 5/16"-18 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through serrated locking technology that prevents loosening under dynamic loads
• Enhanced load distribution with 11/16" flange diameter to minimize surface pressure and prevent material damage
• Exceptional corrosion protection from black-oxide steel coating that extends service life in harsh environments
• Reliable thread engagement with Class 2B thread fit ensuring consistent performance and easy assembly
• Optimized for industrial applications featuring UNC coarse threads for quick installation and reduced cross-threading risk
• Secure environmental compliance meeting both REACH and RoHS 3 standards for global manufacturing requirements
• Standard external hex drive providing compatibility with common tools and straightforward installation

Professional Applications & Engineering Value

This heavy-duty flange locknut addresses critical vibration-induced failure points in industrial equipment and machinery. The serrated locking mechanism creates permanent resistance to rotational forces, making it ideal for automotive assemblies, construction equipment, and manufacturing machinery where constant motion threatens fastener integrity. The black-oxide steel construction provides essential corrosion resistance while maintaining the structural strength needed for high-stress applications. The 11/16" flange diameter significantly increases bearing surface area, distributing clamp load effectively to prevent damage to softer materials and reduce the need for additional washers. With UNC coarse threads and Class 2B thread fit, this flange nut ensures reliable performance in applications requiring frequent maintenance or assembly adjustments.

Specification Summary & Compliance

This flange locknut features 5/16"-18 UNC coarse threads with Class 2B thread fit for consistent engagement and right-hand threading direction. The external hex drive with standard profile measures 1/2" across flats with 9/32" height. Manufacturing complies with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, ensuring environmental responsibility and global market acceptance. The flange specifications include 11/16" diameter with 0.04" thickness for optimal load distribution performance.