S-96177A570 5/8"-11 x 2" ASTM A108 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel finish, extending service life in demanding industrial environments
• Exceptional tensile strength through ASTM A108 compliance, ensuring reliable performance under heavy loads
• Precision thread engagement with Class 2B fit and UNC coarse threading, providing secure connections without cross-threading
• Full-length threading design allows maximum adjustability and connection versatility across various applications
• Right-hand thread orientation enables standard installation procedures for efficient assembly operations
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
• Optimized 2" length provides sufficient engagement surface for robust coupling between threaded components

Professional Applications & Engineering Value

This 5/8"-11 UNC coupling nut delivers critical engineering solutions for industrial assembly challenges where extended-length fastening is required. The black-oxide steel construction provides essential corrosion protection in manufacturing facilities, automotive applications, and structural frameworks where environmental exposure is a concern. The fully threaded design with coarse UNC threads ensures rapid installation and disassembly while maintaining structural integrity under vibration and dynamic loads. With its 2" length and Class 2B thread fit, this coupling nut effectively bridges gaps between male-threaded components in hydraulic systems, machinery alignment, and pipe connections, preventing misalignment and reducing assembly time. The combination of ASTM A108 compliance and robust material properties addresses the fundamental need for reliable, long-lasting connections in heavy-duty industrial environments.

Specification Summary & Compliance

This coupling nut features 5/8"-11 UNC coarse threads with Class 2B thread fit precision, ensuring proper engagement with mating components. The product maintains dimensional accuracy with 55/64" OD and 2" length specifications. Manufacturing complies with ASTM A108 standards for material quality and performance. Environmental compliance includes RoHS 3 (2015/863/EU) with exemption 6(a) for lead as an alloying element in steel, and full REACH (EC 1907/2006) compliance with the latest SVHC requirements as of January 17, 2023.