S-90949A119 3/4"-16 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision distorted thread locking technology that maintains clamp force in high-stress environments
• Enhanced corrosion protection with black phosphate steel coating for extended service life in harsh industrial conditions
• Reliable fine-thread performance with 3/4"-16 UNF threading providing better tension control and reduced loosening risk
• Integrated flange design eliminates need for separate washers while distributing load across wider surface area
• Heavy-duty Grade G strength classification ensures consistent performance under extreme mechanical loads
• Class 2B thread fit guarantees precise engagement with mating components for secure fastening
• External hex drive compatibility with standard tools for quick installation and removal

Professional Applications & Engineering Value

This Grade G flange locknut addresses critical vibration-induced loosening challenges in heavy machinery, automotive assemblies, and structural applications. The black phosphate steel construction provides exceptional corrosion resistance while the distorted thread locking mechanism creates permanent friction points that resist rotational forces. The UNF fine threading (3/4"-16) offers superior tension control compared to coarse threads, making it ideal for precision equipment where minute adjustments matter. The integrated 1 37/64" flange diameter distributes clamping pressure evenly, preventing surface damage and maintaining joint integrity. These engineering features combine to deliver reliable performance in demanding environments where safety and durability are paramount.

Specification Summary & Compliance

This flange locknut features Class 2B thread fit per UNF standards with right-hand fine threading (3/4"-16). Manufacturing complies with Grade G strength requirements and maintains dimensional accuracy with standard external hex drive (1 1/8" width) and 53/64" height. The product is fully RoHS 3 (2015/863/EU) compliant and manufactured to industrial specifications for consistent performance across batch productions.