S-90465A316 5/16"-24 x 7/8" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with brass construction, ideal for harsh industrial environments and extending service life
• Precise thread engagement with Class 2B thread fit, ensuring reliable, vibration-resistant connections in critical assemblies
• Easy installation and removal thanks to the external hex drive design, allowing for standard wrench use and reducing assembly time
• Full thread coverage across the 7/8" length, providing maximum grip strength and uniform load distribution in coupled components
• Fine UNF threading (5/16"-24) delivers enhanced sealing and superior resistance to loosening under dynamic loads
• Compliance with environmental standards including REACH and RoHS 3, ensuring safe use in regulated industries
• Standard coupling nut profile offers versatility for joining threaded rods, studs, or pipes in various mechanical setups

Professional Applications & Engineering Value

This brass coupling nut with 5/16"-24 UNF fine threading and Class 2B thread fit is engineered to address common industrial challenges such as corrosion-induced failure and connection instability. The fully threaded design and external hex drive facilitate quick, secure assembly in applications like machinery linkages, fluid systems, and precision instruments, where consistent performance is critical. Made from durable brass, it naturally resists rust and galvanic corrosion, making it suitable for marine, automotive, and electrical enclosures. Its right-hand thread and fine pitch enhance clamping force, reducing the risk of loosening in high-vibration environments, while the standardized dimensions ensure compatibility with existing UNF components.

Specification Summary & Compliance

This coupling nut features a 5/16"-24 UNF fine thread with Class 2B thread fit for precise tolerance, a length of 7/8", and a width of 1/2". It adheres to standard manufacturing specifications for external hex drive and fully threaded right-hand design. The product is compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy, ensuring environmental and safety standards are met for industrial use.