S-93083A111 12-24 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through serrated locking technology that prevents loosening under dynamic loads
• Enhanced corrosion protection with black-oxide steel construction for extended service life in harsh environments
• Efficient installation with standard external hex drive and 7/16" width for common tool compatibility
• Reliable thread engagement with Class 2B coarse UNC threads ensuring consistent performance in high-vibration applications
• Integrated flange design eliminates need for separate washers while providing 19/32" distributed load bearing surface
• Right-hand threading conforms to industry standards for straightforward assembly processes
• Environmental compliance meets REACH and RoHS 3 regulations for global industrial applications

Professional Applications & Engineering Value

This 12-24 UNC flange locknut delivers critical vibration-resistant performance in demanding industrial settings where secure fastening is paramount. The black-oxide steel construction provides essential corrosion resistance while the serrated locking mechanism creates permanent resistance to rotational loosening caused by machinery vibrations, thermal cycling, and dynamic loads. The integrated flange design with 19/32" diameter distributes clamping force over a wider surface area, reducing point stress and preventing surface damage. Particularly valuable in automotive assembly, heavy equipment manufacturing, and industrial machinery where coarse UNC threads enable rapid installation while maintaining Class 2B thread fit precision for consistent torque values and reliable joint integrity.

Specification Summary & Compliance

This flange locknut features 12-24 UNC coarse threads with Class 2B thread fit ensuring proper clearance and engagement with mating components. The external hex drive measures 7/16" across flats with standard profile for universal tool compatibility. Manufacturing complies with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, confirming environmental compliance for industrial distribution and use. The flange diameter specification of 19/32" with 0.04" thickness provides standardized dimensional consistency across applications.