S-90268A439 5/8"-11 x 5" Coupling Nuts

Key Features & Benefits at a Glance

• Exceptional tensile strength from 18-8 stainless steel construction, providing reliable performance in demanding industrial environments
• Superior torque transmission through external hex drive design, enabling secure installation with standard tools
• Extended connection capability with extra long 5" profile, ideal for joining threaded rods over greater distances
• Precision thread engagement with Class 2B UNC coarse threads, ensuring consistent fit and reduced cross-threading risk
• Corrosion-resistant properties of 18-8 stainless steel, maintaining integrity in harsh conditions and outdoor applications
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
• Optimized thread design with partial threading and right-hand direction, facilitating easier alignment and installation

Professional Applications & Engineering Value

This extra long coupling nut delivers critical engineering solutions for structural connections requiring extended reach. The 18-8 stainless steel composition provides excellent corrosion resistance while maintaining high tensile strength, making it ideal for construction, machinery assembly, and infrastructure projects where environmental exposure is a concern. The UNC coarse threading with Class 2B fit ensures reliable engagement with mating components, reducing installation time and preventing thread damage. The external hex drive configuration allows for high-torque application using standard wrenches, while the partial threading design facilitates easier alignment in complex assemblies. These features combine to create a versatile coupling nut solution that addresses common challenges in industrial fastening applications, from vibration resistance to long-term durability.

Specification Summary & Compliance

This coupling nut features 5/8"-11 UNC coarse threading with Class 2B thread fit tolerance for precise engagement. The partially threaded design with right-hand direction provides 15/16" minimum thread length within the 5" overall length. Manufactured from 18-8 stainless steel with external hex drive (7/8" width), this fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring regulatory compliance for industrial applications worldwide.