S-90983A218 1/2"-20 x 1 3/4" Coupling Nuts

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Grade 8 classification, ensuring high tensile strength for demanding industrial applications.
• Superior corrosion resistance provided by zinc-plated steel, extending service life in harsh environments.
• Precise and secure connections thanks to the 1/2"-20 UNF fine threading and Class 2B fit, minimizing the risk of loosening under vibration.
• Easy installation and removal with a standard external hex drive, allowing for straightforward use with common wrenches.
• Versatile fully threaded design enabling flexible positioning and strong engagement along the entire length for rod coupling.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.
• Durable construction with a robust 3/4" width and 1 3/4" length, providing stability in heavy-duty mechanical assemblies.

Professional Applications & Engineering Value

This Grade 8 coupling nut is engineered to solve critical challenges in industrial settings, such as connecting threaded rods in structural frameworks, machinery, and automotive systems. Made from zinc-plated steel, it offers enhanced corrosion protection, reducing maintenance needs in exposed or humid conditions. The UNF fine thread and Class 2B fit ensure tight, reliable joints that resist vibration-induced failures, making it ideal for applications where safety and longevity are paramount. Its fully threaded and external hex design allows for easy adjustment and strong torque application, streamlining assembly processes in construction, manufacturing, and repair operations. By incorporating this heavy-duty coupling nut, engineers can achieve consistent performance and reduce downtime in demanding environments.

Specification Summary & Compliance

This coupling nut adheres to precise dimensional standards, including a Class 2B thread fit for consistent accuracy and a UNF fine thread type with 1/2"-20 size. It meets industry manufacturing specifications for Grade 8 strength and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance in industrial applications.