S-90202A208 1/4"-28 x 1 1/4" ASTM A582 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability
• Precise thread engagement with Class 2B fit and UNF fine threading, ensuring secure, vibration-resistant connections
• Full-threaded design maximizes strength and load distribution across the entire 1-1/4" length
• Standardized compliance with ASTM A582 for consistent quality and mechanical performance
• Broad compatibility with right-hand UNF threaded rods and components in inch-system assemblies
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict industrial safety regulations
• Optimized dimensions (23/64" OD) for easy handling and installation in confined spaces

Professional Applications & Engineering Value

This 1/4"-28 UNF coupling nut delivers exceptional performance in demanding industrial settings where reliability and corrosion resistance are critical. Manufactured from 18-8 stainless steel, it effectively resists rust and chemical degradation in marine, chemical processing, and outdoor applications. The fully threaded design and Class 2B thread fit provide superior vibration resistance and uniform stress distribution, preventing loosening under dynamic loads. Its fine UNF threading ensures precise alignment and tight sealing in hydraulic systems, precision machinery, and extended fastener assemblies. Engineered to ASTM A582 standards, this coupling nut offers consistent mechanical properties and durability, making it an ideal stainless steel coupling connector for high-stress B2B applications requiring dependable, long-lasting performance.

Specification Summary & Compliance

This coupling nut features a 1/4"-28 UNF thread with Class 2B fit and right-hand direction, ensuring precise dimensional accuracy per inch-system standards. The 23/64" OD and 1-1/4" length provide optimal engagement and strength. It is manufactured in compliance with ASTM A582 specifications for material and threading quality. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for industrial components.