S-93350A037 7/8"-9 x 2 1/2" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection with hot-dipped galvanized steel coating, extending service life in harsh industrial environments
• Reliable thread engagement through Class 2B thread fit, ensuring consistent assembly and reducing cross-threading risks
• High-strength coupling capability with full threading and UNC coarse threads, providing maximum load distribution for heavy-duty applications
• Easy installation and removal with external hex drive design, allowing standard wrench access in confined spaces
• Environmental compliance assurance meeting RoHS 3 and REACH standards, supporting sustainable procurement policies
• Optimized dimensional stability with 1-1/4" width and 2-1/2" length, maintaining alignment in extended fastener assemblies
• Industry-standard compatibility with UNC coarse threading (7/8"-9), ensuring interchangeability with existing equipment and components

Professional Applications & Engineering Value

This hot-dipped galvanized steel coupling nut delivers exceptional performance in demanding industrial settings where corrosion resistance and structural integrity are paramount. The fully threaded design with UNC coarse threading provides maximum thread contact area, effectively transferring loads across connected components in structural frameworks, machinery assemblies, and piping systems. The external hex drive configuration enables secure torque application even in limited-access installations, while the Class 2B thread fit guarantees precise engagement without binding. Engineers specify this coupling nut for applications requiring extended fastener lengths with maintained alignment, such as in construction equipment, transportation infrastructure, and heavy manufacturing where environmental exposure demands the superior protection of hot-dipped galvanization.

Specification Summary & Compliance

This coupling nut features 7/8"-9 UNC coarse threading with Class 2B thread fit per ASME B1.1 standards, ensuring dimensional accuracy and interchangeability. The standard coupling nut profile measures 1-1/4" width across flats and 2-1/2" length with fully threaded right-hand configuration. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and restricted substance compliance for global industrial applications.