S-94758A028 1/4"-20 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term outdoor use
• Eliminates the need for separate washers thanks to the integrated 5/8" flange, reducing assembly time and parts inventory
• Reliable thread engagement with Class 2B UNC coarse threads, ensuring smooth installation and vibration resistance
• Enhanced torque application through the standard external hex drive, compatible with common wrenches for secure fastening
• Durable performance in demanding applications with a robust 0.09" flange thickness that distributes load effectively
• Compliance with major environmental regulations including RoHS 3 and REACH, meeting global supply chain requirements
• Wide industrial compatibility with right-hand UNC coarse threading (1/4"-20), suitable for machinery, equipment, and structural assemblies

Professional Applications & Engineering Value

This 1/4"-20 UNC flange nut delivers critical engineering value by addressing common industrial fastening challenges. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for applications in chemical processing, marine environments, and outdoor equipment where moisture exposure is a concern. The integrated 5/8" flange acts as a built-in washer, spreading clamp load over a wider surface area to prevent damage to soft materials and reduce loosening under vibration—common in automotive, machinery, and structural frameworks. With Class 2B coarse threads and external hex drive, installation is quick and secure, minimizing assembly errors and maintenance downtime. This nut is engineered for heavy-duty industrial applications requiring reliability, durability, and regulatory compliance.

Specification Summary & Compliance

This flange nut features precision UNC coarse threads (1/4"-20) with a Class 2B thread fit for consistent engagement and ease of assembly. The external hex drive (1/2" width) and standard hex profile ensure compatibility with common tools. It is manufactured from 18-8 stainless steel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial and commercial use.