S-90389A224 7/8"-9 Flange Nuts
Flange Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
- Eliminates the need for a separate washer thanks to the integrated 1 3/4" flange, saving assembly time and reducing part count
- Reliable, vibration-resistant performance ensured by the coarse UNC thread and Class 2B fit for secure fastening
- Easy installation and removal with the standard external hex drive, compatible with common wrenching tools
- Enhanced load distribution from the 0.25" thick flange, minimizing surface pressure and material stress
- Guaranteed material integrity and safety through compliance with RoHS 3 and REACH environmental regulations
- Broad industrial compatibility with standard inch (UNC) coarse threading for versatile application use
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this heavy-duty 7/8"-9 UNC flange nut solves critical challenges in assembly and maintenance. The 316 stainless steel material provides exceptional resistance to corrosion, pitting, and high-temperature oxidation, making it indispensable in marine, chemical processing, and outdoor infrastructure. The integral 1 3/4" flange acts as a built-in washer, distributing clamp load over a wider area to prevent loosening under vibration and reduce damage to connected surfaces. With its coarse thread and Class 2B thread fit, it ensures quick assembly and reliable performance in high-stress applications, from heavy machinery to structural frameworks, where durability and long-term reliability are non-negotiable.
Specification Summary & Compliance
This flange nut adheres to Class 2B thread fit for consistent engagement and dimensional accuracy. It conforms to the Unified National Coarse (UNC) thread standard with a 7/8"-9 thread size and right-hand direction. The product is manufactured to be fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets stringent environmental and safety standards for hazardous substances.
