S-96177A560 5/8"-18 x 1 1/2" ASTM A108 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel finish, ideal for harsh industrial environments.
• Precise and reliable connections ensured by Class 2B fine threading for reduced risk of cross-threading.
• Maximum load distribution through fully threaded design, enhancing joint integrity under heavy loads.
• High-strength performance backed by ASTM A108 material standards for demanding applications.
• Wide compatibility with 5/8"-18 UNF right-hand threaded rods and bolts, simplifying assembly.
• Environmental compliance meeting RoHS 3 and REACH regulations, supporting sustainable operations.
• Durable construction with standard profile and 1 1/2" length for long-lasting use in repetitive setups.

Professional Applications & Engineering Value

This 5/8"-18 UNF coupling nut is engineered to address common challenges in industrial assembly, such as vibration-induced loosening and corrosion in exposed settings. Made from black-oxide steel, it provides a protective layer that minimizes rust and wear, extending service life in machinery, construction, and automotive systems. The fully threaded and fine thread design ensures tight, secure connections that resist back-off under dynamic loads, while the Class 2B thread fit offers consistent engagement for precision alignment. Ideal for extending threaded rods or joining components, this nut delivers reliable performance in heavy-duty applications, reducing maintenance downtime and enhancing operational efficiency.

Specification Summary & Compliance

This coupling nut adheres to Class 2B thread tolerances for precise fit, with UNF fine threading (5/8"-18) and right-hand direction. It meets ASTM A108 specifications for material quality and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. Dimensions include an OD of 55/64" and a length of 1 1/2", ensuring consistent performance in regulated industrial environments.