S-90264A260 1"-8 x 2 3/4" Coupling Nuts

Key Features & Benefits at a Glance

• Exceptional tensile strength from zinc-plated steel construction, ensuring reliable performance in heavy-duty applications
• Superior corrosion resistance with zinc plating, extending service life in harsh industrial environments
• Precise Class 2B thread fit for smooth assembly and secure connections without binding or cross-threading
• Full external hex design provides easy installation and removal with standard wrench tools
• Coarse 1"-8 UNC threading offers faster assembly and reduced susceptibility to damage in high-vibration settings
• Standard coupling nut profile ensures compatibility with existing industrial fastener systems
• Comprehensive compliance with RoHS 3 and REACH regulations for safe, environmentally responsible manufacturing

Professional Applications & Engineering Value

This heavy-duty coupling nut delivers critical engineering solutions for industrial applications requiring extended-length threaded connections. The zinc-plated steel construction provides excellent corrosion protection while maintaining high tensile strength, making it ideal for structural frameworks, machinery assembly, and equipment manufacturing. The fully threaded design with 1"-8 UNC coarse threading enables maximum engagement depth and distributes load evenly across the connection. The external hex drive style allows for high-torque installation using common tools, while the Class 2B thread fit ensures consistent performance without galling or seizing in high-cycle applications. These features combine to create a reliable coupling solution that withstands vibration, shock loads, and environmental exposure in demanding industrial settings.

Specification Summary & Compliance

This coupling nut features 1"-8 UNC coarse threading with Class 2B thread fit tolerance for precise engagement. The standard inch system dimensions include a 1-3/8" width across flats and 2-3/4" length. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. The right-hand thread direction and fully threaded configuration provide consistent performance across industrial fastener applications.