S-90654A311 3/8"-16 x 1 3/4" Coupling Nuts

Key Features & Benefits at a Glance

• Maximum load-bearing capacity with ASTM Grade 2H steel construction for reliable performance in high-stress applications
• Secure and precise thread engagement thanks to Class 2B thread fit, reducing the risk of cross-threading and assembly errors
• Easy installation and removal with external hex drive design, compatible with standard wrenches for efficient maintenance
• Versatile connection capability through fully threaded right-hand UNC coarse threading, ideal for joining long rods or studs
• Durable corrosion resistance from high-quality steel material, ensuring long service life in industrial environments
• Compliance with global environmental standards including RoHS 3 and REACH, making it suitable for regulated industries
• Consistent dimensional accuracy with 11/16" width and 1 3/4" length, enabling predictable and repeatable assembly processes

Professional Applications & Engineering Value

This 3/8"-16 UNC coupling nut is engineered to address common challenges in industrial assembly, such as the need for robust, long-lasting connections between threaded rods or studs. The steel material and ASTM Grade 2H certification provide exceptional tensile strength, preventing failures under heavy loads and vibrations. Its fully threaded, right-hand design with coarse spacing ensures quick and secure engagement, reducing installation time and minimizing the risk of stripping. Commonly used in construction, machinery, and automotive sectors, this nut offers reliable performance in heavy-duty applications where durability and precision are critical. The external hex drive allows for easy tightening with standard tools, enhancing workflow efficiency in maintenance and production lines.

Specification Summary & Compliance

This coupling nut adheres to UNC thread standards with a Class 2B thread fit for consistent dimensional accuracy and smooth assembly. It meets ASTM Grade 2H specifications for high strength and is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. The product features a standard external hex drive and is fully threaded with right-hand, coarse spacing, designed for reliable performance in various industrial fastening applications.