S-90104A055 1 1/4"-7 x 3" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life
• Reliable thread engagement provided by Class 2B thread fit, ensuring smooth assembly and reduced risk of cross-threading
• High-strength coupling capability due to the 3" length and full threading, offering robust connections for extended rod or pipe assemblies
• Easy installation and removal with external hex drive and coarse UNC threading, allowing for quick maintenance with standard tools
• Dimensional stability and precision from inch system manufacturing, guaranteeing consistent performance in industrial setups
• Environmental and safety compliance with RoHS 3 and REACH standards, making it suitable for regulated global markets
• Versatile right-hand threading designed for common applications, simplifying integration into existing systems

Professional Applications & Engineering Value

This 316 stainless steel coupling nut is engineered to address critical challenges in industrial settings, such as corrosion-induced failures and assembly inefficiencies. The UNC coarse thread and Class 2B thread fit provide excellent vibration resistance and ease of installation, reducing downtime in maintenance-heavy operations like construction, marine, and chemical processing. Its fully threaded design and external hex drive enable secure, long-lasting connections for extending threaded rods or joining components, while the premium material ensures durability in aggressive environments. By incorporating this coupling nut, engineers achieve reliable performance in structural frameworks, piping systems, and machinery, enhancing overall project longevity and safety.

Specification Summary & Compliance

This coupling nut adheres to UNC thread standards with a Class 2B thread fit for precise dimensional accuracy, measuring 1 1/4"-7 in thread size, 3" in length, and 1 5/8" in width. It is manufactured in accordance with industry norms for inch system components and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and health safety requirements for industrial use.