S-90759A650 7/16"-20 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection with black-oxide steel construction for extended service life in harsh environments
• Precise thread engagement with Class 3B fit ensuring vibration resistance and reliable fastening integrity
• Enhanced load distribution through the 53/64" flange diameter, reducing surface pressure and material stress
• High-torque installation capability with external 12-point drive design for secure assembly in confined spaces
• Fine thread accuracy with UNF 7/16"-20 specification providing superior clamping force in precision applications
• Durable structural performance from standard hex nut profile maintaining stability under dynamic loads
• Right-hand thread compatibility with industry-standard equipment for seamless integration into existing systems

Professional Applications & Engineering Value

This black-oxide steel flange nut delivers critical performance advantages in demanding industrial environments where corrosion resistance and vibration-proof fastening are paramount. The UNF fine thread configuration (7/16"-20) combined with Class 3B thread fit ensures exceptional clamping force retention in high-vibration applications such as heavy machinery, automotive assemblies, and precision equipment. The integrated 53/64" flange diameter eliminates the need for separate washers while providing superior load distribution across mating surfaces. The external 12-point drive facilitates high-torque installation in confined spaces, making it ideal for aerospace, defense, and manufacturing applications where reliability and precision are non-negotiable.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3B thread fit per UNF specifications, ensuring precision tolerance for critical applications. The black-oxide surface treatment provides corrosion resistance while maintaining dimensional stability. Complies with industry standards for inch-system fasteners and meets material specifications for industrial-grade steel components. Suitable for applications requiring fine thread engagement (20 TPI) and right-hand thread direction per universal engineering conventions.