S-90264A221 1/2"-13 x 1 3/4" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Exceptional connection strength through fully threaded design that maintains structural integrity under heavy loads
• Reliable thread engagement with Class 2B thread fit ensuring consistent performance and easy assembly
• Optimized torque transmission via external hex drive design for secure installation with standard tools
• Versatile compatibility with UNC coarse threading system for broad application across industrial equipment
• Enhanced durability with right-hand threading that withstands vibration and maintains connection integrity
• Regulatory compliance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This heavy-duty coupling nut delivers critical performance in demanding applications where extended fastening solutions are required. The zinc-plated steel construction provides essential corrosion protection for outdoor equipment, machinery, and structural assemblies exposed to environmental elements. The fully threaded design and UNC coarse threading ensure maximum thread engagement throughout the entire 1-3/4" length, distributing stress evenly across the connection point. This engineering approach prevents thread stripping and maintains connection strength in high-vibration environments common in industrial machinery, construction equipment, and automotive applications. The external hex drive style allows for high-torque installation using standard wrenches, while the Class 2B thread fit guarantees consistent performance across production runs, reducing assembly time and improving manufacturing efficiency.

Specification Summary & Compliance

This coupling nut features 1/2"-13 UNC coarse threading with Class 2B thread fit precision manufactured to industry standards. The standard profile coupling nut measures 1-3/4" in length with 7/8" width across flats and features right-hand threading. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety standards are met for industrial applications.