S-90977A262 1"-8 x 2 3/4" Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance through hot-dipped galvanized steel coating for extended service life in harsh industrial environments
• Exceptional tensile strength with Grade 5 classification, providing reliable performance in high-stress applications
• Optimized thread engagement with Class 2B fit and coarse 1"-8 UNC threading for secure, vibration-resistant connections
• Enhanced installation efficiency featuring external hex drive design for easy wrench access and torque application
• Maximum connection versatility with fully threaded design accommodating various rod and bolt lengths
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial use
• Robust dimensional profile with 2 3/4" length and 1 3/8" width for substantial load-bearing capability

Professional Applications & Engineering Value

This Grade 5 hot-dipped galvanized steel coupling nut delivers critical engineering solutions for industrial assembly challenges. The 1"-8 UNC coarse threading with Class 2B fit ensures reliable engagement in structural connections, while the external hex drive facilitates quick installation in confined spaces. The hot-dipped galvanized coating provides superior protection against corrosion in outdoor or chemically aggressive environments, significantly extending service life. Engineered for heavy-duty applications including machinery assembly, structural frameworks, and construction projects, this fully threaded coupling nut maintains integrity under sustained vibration and load stress. The combination of right-hand threading and robust material properties makes it ideal for connecting threaded rods, extending bolts, or joining components in demanding industrial settings where reliability and durability are paramount.

Specification Summary & Compliance

This coupling nut maintains precision Class 2B thread fit according to UNC standards with coarse 1"-8 threading. Manufactured to Grade 5 strength specifications using hot-dipped galvanized steel, the fastener demonstrates dimensional accuracy with 2 3/4" length and 1 3/8" width. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications.