S-93345A239 7/8"-9 x 2 1/2" Coupling Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance through zinc plating, extending service life in harsh industrial environments
• Superior load distribution with full-length threading for maximum strength in connecting threaded rods or pipes
• Left-hand thread compatibility for specialized applications requiring reverse-direction fastening
• Precise Class 2B thread fit ensures smooth assembly and reliable engagement with mating components
• Coarse UNC threading provides quick installation and reduced cross-threading risks
• External hex drive design allows for high-torque application using standard tools
• Robust zinc-plated steel construction delivers exceptional durability for heavy-duty applications

Professional Applications & Engineering Value

This 7/8"-9 UNC left-hand coupling nut addresses critical engineering challenges in industrial assembly where reverse-thread applications prevent loosening from rotational forces. The zinc-plated steel construction provides essential corrosion protection for machinery, construction equipment, and automotive systems exposed to demanding environments. With its fully threaded design and coarse UNC threading, this coupling nut ensures maximum thread engagement across the entire 2 1/2" length, distributing stress evenly to prevent failure points. The external hex drive accommodates high-torque installation, making it ideal for connecting threaded rods in structural applications, hydraulic systems, and heavy machinery where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This coupling nut features Class 2B thread fit per UNC standards with 7/8"-9 coarse threading in left-hand direction. Manufactured to standard coupling nut profile with dimensions of 1 1/4" width and 2 1/2" length in inch system measurement. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial standard adherence.