S-96177A130 1/4"-20 x 3/4" ASTM A276 Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel coating for extended service life in harsh industrial environments
• Precise thread engagement with Class 2B thread fit ensuring reliable connections and reduced assembly time
• Maximum load distribution through fully threaded design that maintains structural integrity under heavy loads
• Industry-standard compatibility with UNC coarse threading (1/4"-20) for seamless integration with existing components
• Enhanced durability from ASTM A276 certified steel construction that withstands high-stress applications
• Regulatory compliance assurance with RoHS 3 and REACH standards for global market acceptance
• Optimized installation efficiency with right-hand threading and standard profile for straightforward assembly processes

Professional Applications & Engineering Value

This black-oxide steel coupling nut delivers exceptional performance in demanding industrial assembly scenarios where corrosion resistance and mechanical strength are critical. The fully threaded UNC coarse spacing (1/4"-20) provides superior load-bearing capacity across the entire 3/4" length, effectively preventing thread stripping in high-vibration environments. Engineered with Class 2B thread fit precision, it eliminates play between connected components while maintaining smooth installation characteristics. The black-oxide surface treatment creates a protective barrier against oxidation and chemical exposure, making it ideal for outdoor equipment, machinery frames, and structural frameworks where environmental factors would compromise ordinary fasteners. This coupling nut solves common engineering challenges of joint integrity and long-term reliability through its ASTM A276 certified material composition and standardized threading profile.

Specification Summary & Compliance

This coupling nut features 1/4"-20 UNC coarse threads with Class 2B thread fit tolerance for precise mating components. The 23/64" OD and 3/4" length dimensions ensure consistent performance across applications. Manufactured to ASTM A276 specifications for material quality and fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) regulations regarding substance restrictions.