S-90977A165 3/8"-16 x 1 3/4" Coupling Nuts

Key Features & Benefits at a Glance

• Enhanced Durability: Zinc-plated steel construction provides excellent corrosion resistance, extending service life in harsh industrial environments.
• High-Strength Performance: Grade 5 classification ensures reliable load-bearing capacity and resistance to vibration loosening in demanding applications.
• Secure Connection: Fully threaded UNC coarse design with Class 2B fit offers consistent engagement and reduces the risk of cross-threading for stable assemblies.
• Easy Installation: Standard external hex drive allows for quick and straightforward tightening using common wrenches, saving time on the production line.
• Versatile Sizing: 3/8"-16 thread size and 1 3/4" length accommodate various rod or bolt extensions, providing flexibility in custom configurations.
• Regulatory Compliance: Meets RoHS 3 and REACH standards, ensuring safe use in regulated industries and global market acceptance.
• Cost-Effective Solution: Combines robust materials with precise manufacturing to minimize replacement needs and lower long-term maintenance costs.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel coupling nut is engineered to address common challenges in mechanical assemblies, such as connecting threaded rods or extending bolts in structural frameworks. The UNC coarse threading and Class 2B thread fit ensure smooth, precise engagement that withstands high-stress conditions, reducing the risk of joint failure in heavy-duty applications like construction, automotive, and machinery. Its fully threaded design provides uniform load distribution, while the external hex drive facilitates easy installation with standard tools, enhancing workflow efficiency. The zinc plating adds a protective layer against rust and corrosion, making it ideal for outdoor or humid environments where durability is critical. By offering reliable performance and compliance with industry standards, this coupling nut delivers consistent value in B2B procurement for engineers and maintenance teams.

Specification Summary & Compliance

This coupling nut features a 3/8"-16 UNC coarse thread with Class 2B thread fit for precise dimensional accuracy, adhering to standardized inch measurements. It is manufactured from zinc-plated steel and includes a standard coupling nut profile with right-hand threading and external hex drive. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and quality assurance in industrial use.