S-90465A320 7/16"-20 x 1 1/4" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from brass construction, ideal for humid or chemically exposed environments
• Precise thread engagement with Class 2B fit for reliable, vibration-resistant connections in demanding assemblies
• Easy installation and removal using standard tools thanks to the external hex drive design
• Full-length threading ensures maximum grip and uniform load distribution across the entire coupling length
• Fine UNF threading (7/16"-20) provides enhanced sealing and superior resistance to loosening under dynamic loads
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries
• Durable brass material maintains mechanical integrity and electrical conductivity in specialized applications

Professional Applications & Engineering Value

This brass coupling nut with UNF fine threading and Class 2B thread fit is engineered to solve critical challenges in industrial assembly, plumbing, and electrical systems where corrosion resistance and precision are paramount. The fully threaded design allows for extended engagement, distributing stress evenly to prevent fatigue failure in high-vibration environments like machinery and automotive components. Its external hex drive facilitates quick installation with common wrenches, reducing assembly time in production lines. The brass material naturally resists galvanic corrosion and maintains performance in temperature-varying conditions, making it ideal for connecting rods, hydraulic fittings, and instrumentation where reliable, long-term fastening is essential. This nut ensures leak-proof connections in fluid systems and secure joins in structural applications, backed by its compliant REACH and RoHS 3 status for global supply chain integration.

Specification Summary & Compliance

This coupling nut adheres to UNF fine thread standards with a size of 7/16"-20 and Class 2B thread fit for consistent dimensional accuracy and interchangeability. It features a standard external hex drive, fully threaded right-hand design, and dimensions of 1-1/4" length and 9/16" width. Manufactured in compliance with RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloys and REACH (EC 1907/2006) standards, ensuring environmental safety and regulatory acceptance in industrial markets.