S-90268A511 1 1/8"-7 x 3" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Exceptional tensile strength to handle heavy-duty loads and prevent joint failure in demanding applications
• Precision Class 2B thread fit ensures smooth assembly and reliable, vibration-resistant connections
• Fully threaded design provides maximum engagement length for enhanced stability and load distribution
• Standard external hex drive allows for easy installation and removal with common wrench tools
• Coarse UNC threading enables quick assembly and reduced cross-threading risks in industrial settings
• Full regulatory compliance with RoHS 3 and REACH standards for safe, environmentally responsible usage

Professional Applications & Engineering Value

This 1 1/8"-7 UNC coupling nut delivers critical engineering solutions where extended-length connectivity and corrosion resistance are paramount. The 18-8 stainless steel construction provides excellent durability against chemical exposure and atmospheric corrosion, making it ideal for marine, chemical processing, and outdoor infrastructure applications. The fully threaded design and Class 2B thread fit ensure precise alignment and maximum thread engagement when joining long rods, shafts, or threaded bars in mechanical assemblies, construction frameworks, and industrial machinery. The coarse UNC threading and external hex drive significantly reduce installation time while maintaining joint integrity under dynamic loads and vibration, addressing common challenges in maintenance and assembly operations.

Specification Summary & Compliance

This coupling nut features 1 1/8"-7 UNC coarse threading with Class 2B thread fit tolerances, ensuring compatibility with standard threaded components. Manufactured from 18-8 stainless steel with standard external hex drive (1 1/2" width) and fully threaded 3" length profile. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting current substance restriction requirements for industrial and international markets.