S-95025A445 1 3/4"-5 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance through hot-dipped galvanized steel construction for long-term reliability in harsh environments
• Superior load distribution capability thanks to the extra wide hex profile design that prevents surface damage and improves clamping force
• Heavy-duty performance assurance with ASTM Grade 2H certification for high-strength applications requiring reliable fastening
• Optimized thread engagement with Class 2B thread fit ensuring smooth installation and consistent torque performance
• Enhanced installation efficiency through coarse UNC threading that reduces cross-threading risks and speeds assembly
• Comprehensive compliance coverage meeting ASTM A194 specifications plus RoHS 3 and REACH environmental standards
• Robust dimensional stability with 2 3/4" width and 1 23/32" height providing substantial bearing surface for heavy loads

Professional Applications & Engineering Value

This heavy-duty hex nut delivers critical engineering value in demanding industrial applications where corrosion resistance and structural integrity are paramount. The hot-dipped galvanized steel construction provides superior protection against environmental degradation, making it ideal for outdoor infrastructure, marine equipment, and chemical processing facilities. The extra wide hex profile significantly increases bearing surface area, effectively distributing clamp loads across wider surfaces to prevent material deformation in soft substrates. With ASTM Grade 2H certification and coarse UNC threading, these nuts maintain consistent preload in high-vibration environments while the Class 2B thread fit ensures reliable engagement with mating components. This combination addresses common industrial challenges including galvanic corrosion, stress concentration, and installation inefficiency in heavy machinery, structural steel connections, and large-scale assembly operations.

Specification Summary & Compliance

This 1 3/4"-5 UNC hex nut features precise Class 2B thread fit tolerance according to Unified Thread Standard specifications, ensuring proper engagement with Class 2A external threads. Manufacturing complies with ASTM A194 specifications for heavy hex nuts, with material certification to ASTM Grade 2H strength requirements. The product maintains full compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations concerning chemical substances. Dimensional specifications include 2 3/4" width across flats and 1 23/32" height, providing the substantial profile required for high-strength bolted connections in industrial and construction applications.