S-90264A112 5/16"-24 x 7/8" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc-plated steel construction for extended service life in harsh industrial environments
• Precise thread engagement with Class 2B UNF fine threading (5/16"-24) ensuring reliable, vibration-resistant connections
• Optimal load distribution thanks to fully threaded design that minimizes stress concentration points
• Easy installation and removal with standard external hex drive style compatible with common wrench tools
• Enhanced durability through right-hand threading that maintains integrity under rotational stress
• Environmental compliance meeting RoHS 3 and REACH standards for safe, sustainable industrial use
• Versatile coupling capability with 7/8" length providing ample thread engagement for various assembly requirements

Professional Applications & Engineering Value

This zinc-plated steel coupling nut delivers exceptional engineering value in demanding applications where corrosion resistance and thread reliability are critical. The UNF fine threading (5/16"-24) with Class 2B tolerance ensures precise mating with male threads, reducing the risk of cross-threading and providing vibration-resistant performance in machinery, equipment assembly, and structural frameworks. The fully threaded design distributes clamping forces evenly across the entire length, preventing localized stress concentrations that can lead to failure. The external hex drive allows for high-torque installation using standard tools, making it ideal for industrial coupling applications requiring robust, long-lasting threaded connections in automotive, manufacturing, and construction environments.

Specification Summary & Compliance

This coupling nut features 5/16"-24 UNF fine threading with Class 2B thread fit ensuring precise dimensional accuracy according to unified thread standards. The right-hand threaded, fully threaded design measures 7/16" in width and 7/8" in length. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and restricted substance compliance for industrial fastener applications.