S-90465A101 4-40 x 7/16" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance due to durable brass construction, ensuring long-term reliability in harsh industrial environments
• Enhanced torque application with external hex drive design for secure tightening and reduced tool slippage during installation
• Precise thread engagement with Class 2B thread fit, providing consistent performance and reducing cross-threading risks
• Versatile connectivity through fully threaded right-hand UNC coarse threading, enabling reliable joining of threaded rods or components
• Compliance with environmental standards including REACH and RoHS 3, ensuring safe usage in regulated industrial applications
• Optimized dimensions (5/16" width × 7/16" length) for easy handling and space-efficient assembly in confined areas
• Broad industrial compatibility with 4-40 UNC coarse threading, making it suitable for various machinery and equipment applications

Professional Applications & Engineering Value

This 4-40 UNC brass coupling nut delivers exceptional engineering value by addressing common assembly challenges in industrial settings. The durable brass material provides natural corrosion resistance, significantly extending service life in moisture-prone environments while maintaining electrical conductivity. The external hex drive enables high-torque installation without stripping, crucial for maintenance operations requiring repeated disassembly. With fully threaded coarse UNC design, it ensures rapid installation and reliable connections between threaded rods in framework construction, machinery alignment, and pneumatic systems. The Class 2B thread fit guarantees consistent engagement while accommodating minor misalignments, reducing assembly time and improving overall system integrity in automotive, electrical, and manufacturing applications.

Specification Summary & Compliance

This coupling nut maintains Class 2B thread fit per UNC standards with 4-40 coarse threading and right-hand direction. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy. Dimensions are precision-engineered at 5/16" width and 7/16" length with standard coupling nut profile, ensuring interchangeability and reliable performance in industrial fastening systems.