S-90104A020 5/8"-11 x 2 1/8" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• Reliable thread engagement ensured by Class 2B thread fit for consistent assembly performance
• High-strength connections in demanding applications with coarse 5/8"-11 UNC threading
• Easy installation and removal with standard external hex drive design
• Full-length threading provides maximum grip and versatility for various joint requirements
• Compliance with strict regulations including RoHS 3 and REACH for global market acceptance
• Durable industrial performance with robust 2 1/8" length and 13/16" width dimensions

Professional Applications & Engineering Value

This 316 stainless steel coupling nut delivers exceptional value in corrosive or chemically aggressive environments where standard fasteners fail. The fully threaded UNC coarse thread design ensures maximum load distribution and vibration resistance, critical for structural connections in marine, chemical processing, and wastewater treatment applications. Its external hex drive allows for high-torque installation with standard tools, while the Class 2B thread fit maintains precise tolerances for reliable, repeatable assemblies. Engineered to withstand extreme conditions, this coupling nut provides long-term reliability where corrosion resistance and mechanical strength are paramount.

Specification Summary & Compliance

This coupling nut features 5/8"-11 UNC coarse threading with Class 2B thread fit per ASME standards, ensuring dimensional accuracy and interchangeability. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental compliance and material safety. The right-hand threaded, fully threaded design with standard external hex drive profile meets industrial specifications for reliable performance in demanding applications.