S-90759A250 5/16"-24 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel coating, extending service life in harsh environments
• Exceptional torque transmission through 12-point external drive design, reducing tool slippage during installation
• Precision thread engagement with Class 3B UNF fine threads, ensuring reliable vibration resistance
• Integrated flange design eliminates need for separate washers, simplifying assembly and reducing part count
• Wide bearing surface (17/32" diameter) distributes clamping force evenly, preventing surface damage
• Standard hex profile provides compatibility with common industrial wrenching tools
• Right-hand thread direction offers familiar installation for standard industrial applications

Professional Applications & Engineering Value

This black-oxide steel flange nut delivers critical performance advantages in demanding assembly environments where vibration resistance and corrosion protection are paramount. The UNF fine thread configuration with Class 3B fit maintains secure fastening under dynamic loads, making it ideal for automotive subsystems, heavy machinery, and precision equipment. The integrated 17/32" flange provides superior load distribution while the 12-point external drive enables high-torque installation in confined spaces. Engineered to withstand industrial cleaning processes and moderate chemical exposure, this flange nut offers reliable performance where standard fasteners would fail prematurely.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3B thread fit for superior engagement. Features 5/16"-24 UNF fine threads with right-hand direction and standard hex profile. The black-oxide steel construction provides consistent performance while meeting industry standards for industrial fasteners. Complies with relevant ASME/ANSI specifications for dimensional accuracy and thread form.