S-90465A313 5-40 x 7/16" Coupling Nuts

Key Features & Benefits at a Glance

• Premium brass construction provides excellent corrosion resistance and electrical conductivity for long-lasting performance in demanding environments.
• Coarse UNC threading with Class 2B fit ensures fast, easy assembly and a reliable, secure connection that resists loosening.
• External hex drive design offers superior torque transmission for efficient installation and removal with standard tools.
• Fully threaded body allows for maximum engagement and connection strength over the entire length of the nut.
• REACH and RoHS 3 compliance guarantees the material is free from hazardous substances, meeting strict international environmental and safety standards.
• Standard inch dimensions (5/16" W x 7/16" L) ensure seamless compatibility and interchangeability with existing 5-40 UNC threaded components.
• Right-hand thread direction provides standard, intuitive installation for common assembly processes.

Professional Applications & Engineering Value

This 5-40 UNC coupling nut is engineered to solve critical connection challenges in industrial assemblies. The use of high-quality brass makes it ideal for applications requiring corrosion resistance, such as in marine, electrical, and plumbing systems, where moisture is a concern. The coarse thread and Class 2B thread fit are specifically designed to prevent cross-threading and enable rapid assembly, reducing labor time and potential errors on the production line. The fully threaded, standard profile ensures a uniform load distribution, enhancing the joint's integrity when connecting two threaded rods or studs. Its external hex drive allows for high-torque application with common wrenches, providing a dependable solution for maintenance and OEM applications where precision and durability are non-negotiable.

Specification Summary & Compliance

This coupling nut adheres to Unified Coarse (UNC) thread standards with a Class 2B thread fit for consistent dimensional accuracy. The specified thread size is 5-40 with a coarse spacing and right-hand direction. Manufacturing conforms to a standard coupling nut profile with an external hex drive. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, including exemption 6(c) for lead in copper alloys, ensuring it meets rigorous environmental and safety regulations for industrial use.