S-94758A700 1 1/4"-7 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments.
• Integrated flange design eliminates need for separate washers, speeding up assembly and reducing component count.
• Reliable coarse threading (UNC) provides quick installation and reduced risk of cross-threading in industrial settings.
• Precision Class 2B thread fit ensures smooth engagement and consistent clamping force for secure fastening.
• External hex drive with standard profile allows for high-torque application using common tools, enhancing installation efficiency.
• Large 2 1/4" flange diameter distributes load over a wider surface area, minimizing material stress and vibration loosening.
• Full compliance with RoHS 3 and REACH regulations guarantees safe, environmentally responsible use in global supply chains.

Professional Applications & Engineering Value

This heavy-duty flange nut is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in demanding applications. The 18-8 stainless steel material offers excellent resistance to rust and chemical exposure, making it ideal for outdoor machinery, marine equipment, and chemical processing plants. The integrated flange acts as a built-in washer, providing a larger bearing surface that prevents damage to soft materials and maintains joint integrity under dynamic loads. With coarse UNC threading and Class 2B thread fit, it ensures rapid assembly and reliable performance in high-vibration environments like automotive assemblies, construction frameworks, and heavy equipment manufacturing. The external hex drive design facilitates easy installation with standard wrenches, reducing labor time and improving operational efficiency in industrial fastening systems.

Specification Summary & Compliance

This flange nut features a 1 1/4"-7 UNC coarse thread with Class 2B thread fit for standard tolerance and smooth operation. It adheres to inch system measurements with a flange diameter of 2 1/4", thickness of 0.25", and right-hand thread direction. The nut is manufactured from 18-8 stainless steel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance in industrial markets.