S-95025A436 1 1/4"-8 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance through hot-dipped galvanized steel coating, extending service life in harsh industrial environments
• Exceptional load distribution with extra wide hex profile, minimizing stress concentration and preventing joint failure
• High-strength performance meeting ASTM Grade 2H requirements, ensuring reliability in heavy-duty applications
• Precise thread engagement with UN Class 2B coarse threads, enabling quick installation and vibration resistance
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
• Optimal torque transmission through external hex drive design, allowing secure tightening with standard tools
• Dimensional stability with 2" width and 1 7/32" height, maintaining consistent performance under varying load conditions

Professional Applications & Engineering Value

This heavy-duty hex nut addresses critical engineering challenges in structural and industrial applications where corrosion and high tensile loads are primary concerns. The hot-dipped galvanized steel construction provides a thick, durable barrier against rust and chemical exposure, making it ideal for outdoor infrastructure, marine environments, and chemical processing facilities. The extra wide profile significantly increases bearing surface area, distributing clamp load more effectively to prevent material deformation and maintain joint integrity under extreme vibration and dynamic loading conditions. With its 1 1/4"-8 coarse thread configuration and UN Class 2B fit, this nut ensures reliable engagement with mating components while accommodating minor misalignments common in large-scale assemblies. The combination of ASTM Grade 2H strength rating and ASTM A194 specifications guarantees performance consistency in critical bolting applications across construction, heavy machinery, and industrial equipment sectors.

Specification Summary & Compliance

This hex nut features precision UN Class 2B thread fit with 1 1/4"-8 coarse thread spacing in right-hand direction, manufactured to ASTM A194 specifications for high-pressure and high-temperature service applications. The fastener meets ASTM Grade 2H strength requirements and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. Dimensional specifications include 2" width across flats and 1 7/32" height, ensuring compatibility with inch system components and standard wrench sizes.