S-95025A420 7/8"-9 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from hot-dipped galvanized steel coating, ensuring long-term reliability in harsh industrial environments.
• Superior load distribution due to the extra wide hex profile, reducing stress concentration and preventing joint failure.
• High-strength performance meeting ASTM Grade 2H specifications, providing dependable fastening for heavy-duty applications.
• Easy installation and removal with coarse UNC threads and Class 2B fit, offering smooth engagement and reduced assembly time.
• Enhanced durability through compliance with ASTM A194 manufacturing standards, ensuring consistent quality and mechanical properties.
• Environmental compliance with RoHS 3 and REACH regulations, making it suitable for global industrial supply chains.
• Secure right-hand threading designed for standard rotational fastening, minimizing loosening under dynamic loads.

Professional Applications & Engineering Value

This heavy-duty hex nut is engineered to address critical challenges in structural and machinery applications where corrosion resistance and high clamp load capacity are paramount. The hot-dipped galvanized steel construction provides a robust barrier against rust and chemical exposure, extending service life in outdoor or corrosive settings like construction, marine, and infrastructure projects. The extra wide profile significantly increases bearing surface area, distributing forces evenly to prevent material deformation and maintain joint integrity under heavy vibrations or static loads. With coarse UNC threads and Class 2B thread fit, it ensures quick, reliable assembly while reducing the risk of cross-threading, making it ideal for time-sensitive industrial maintenance and OEM manufacturing. This nut delivers consistent performance where failure is not an option, supporting ASTM Grade 2H strength requirements for demanding fastening systems.

Specification Summary & Compliance

This nut features precision 7/8"-9 UNC coarse threads with Class 2B thread fit for consistent engagement and dimensional accuracy. It conforms to ASTM A194 for heavy hex nuts and ASTM Grade 2H for mechanical properties, ensuring high tensile and proof load capabilities. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.