S-90268A206 4-40 x 1" Coupling Nuts

Key Features & Benefits at a Glance

• Extended length design provides superior thread engagement for connecting long threaded rods or studs in demanding applications
• Corrosion-resistant 18-8 stainless steel construction ensures long-term reliability in harsh environments and outdoor applications
• Class 2B thread fit delivers consistent, reliable performance with standard male threaded components
• Full threading throughout the entire 1" length allows for maximum adjustability and positioning flexibility
• 5/16" external hex drive enables easy installation and removal with standard wrenching tools
• 4-40 UNC coarse threading provides quick assembly and disassembly while resisting vibration-induced loosening
• Compliance with RoHS 3 and REACH regulations ensures environmental responsibility and global market acceptance

Professional Applications & Engineering Value

This extra long coupling nut delivers exceptional engineering value in applications requiring extended reach between threaded components. The 18-8 stainless steel material provides excellent corrosion resistance, making it ideal for marine environments, chemical processing equipment, and outdoor structures where moisture and corrosive elements are concerns. The fully threaded design with 4-40 UNC coarse threading ensures maximum thread contact area, distributing load evenly across the entire connection point. This industrial coupling nut solves common challenges in assembly operations where standard nuts cannot bridge gaps between misaligned components or provide sufficient thread engagement for structural integrity. The right-hand thread direction maintains compatibility with standard fastening systems while the external hex drive accommodates high-torque applications without stripping.

Specification Summary & Compliance

This coupling nut features precise Class 2B thread fit according to UNC standards, ensuring compatibility with Class 2A external threads. The manufacturing adheres to UNC coarse thread specifications with 4-40 thread size and right-hand orientation. The product maintains dimensional accuracy with 1" length and 5/16" hex width. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial fastener applications.