S-90268A216 1/4"-20 x 6" Coupling Nuts

Key Features & Benefits at a Glance

• Extended 6" length provides superior reach and alignment capabilities for connecting threaded rods or studs in hard-to-access applications
• 18-8 stainless steel construction delivers excellent corrosion resistance and durability in harsh industrial environments
• Class 2B thread fit ensures smooth assembly and reliable engagement with mating components
• UNC coarse threading offers faster installation and reduced cross-threading risk compared to fine threads
• External hex drive design enables secure tool grip and high torque application with standard wrenches
• Partial threading configuration optimizes strength while reducing material usage and weight
• RoHS 3 and REACH compliance guarantees environmental responsibility and regulatory adherence for global projects

Professional Applications & Engineering Value

This extra long coupling nut solves critical connection challenges in industrial assembly where standard fasteners fall short. The 18-8 stainless steel material provides exceptional corrosion resistance for applications exposed to moisture, chemicals, or outdoor elements, while the 6" length bridges significant gaps between threaded components in structural frameworks, machinery, and piping systems. The UNC coarse thread pattern ensures rapid installation in time-sensitive maintenance operations, and the Class 2B thread fit maintains precise tolerances for vibration-resistant connections. Engineers specify this partially threaded coupling nut for its optimal balance of engagement strength and material efficiency in heavy-duty fastening applications across manufacturing, construction, and infrastructure projects.

Specification Summary & Compliance

This coupling nut features 1/4"-20 UNC coarse threading with Class 2B thread fit tolerances, ensuring compatibility with standard mating components. The partial threading extends to a minimum of 5/8" with right-hand thread direction. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and substance restriction standards for industrial fasteners. The external hex drive measures 1/2" across flats for standardized tooling compatibility.