S-90202A244 5/8"-18 x 1 1/4" ASTM A582 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life.
• Precise and reliable connections ensured by Class 2B fine (UNF) threading, minimizing the risk of cross-threading and loosening.
• High-strength performance meeting ASTM A582 specifications for demanding mechanical and structural applications.
• Full-threaded design provides maximum engagement and uniform stress distribution along the entire length for a secure joint.
• Wide compatibility with standard 5/8"-18 UNF male threads, simplifying sourcing and assembly in various projects.
• Environmental and regulatory compliance with RoHS 3 and REACH, ensuring safety and suitability for global industrial markets.
• Durable and long-lasting material properties reduce maintenance frequency and total cost of ownership.

Professional Applications & Engineering Value

This 5/8"-18 UNF coupling nut is engineered to solve critical challenges in industrial assembly where corrosion resistance and thread reliability are paramount. The use of 18-8 Stainless Steel provides excellent protection against rust and chemical degradation, making it suitable for applications in marine, chemical processing, and outdoor equipment. The fine UNF thread and Class 2B fit offer superior vibration resistance and precise alignment, preventing joint failure in dynamic or high-stress environments. Its fully threaded, standard profile ensures easy installation and a robust connection for extending rods, shafts, or other threaded components, delivering consistent performance and reducing downtime in demanding engineering applications.

Specification Summary & Compliance

This coupling nut features a 5/8"-18 UNF thread with a Class 2B thread fit, ensuring dimensional accuracy and interchangeability. It conforms to the ASTM A582 specification for material and manufacturing standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its adherence to environmental and safety requirements for industrial components.