S-90521A245 3/4"-10 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Superior load distribution through the extra wide profile, reducing stress concentration and preventing joint failure in heavy-duty applications
• Exceptional strength and reliability with ASTM Grade 2H steel construction, ensuring consistent performance under high tension and vibration
• Optimized coarse threading (UNC) for faster assembly and reduced cross-threading risks in industrial environments
• Precision Class 2B thread fit providing smooth engagement and secure fastening without galling or seizing
• Full compliance with ASTM A194 specifications guaranteeing material quality and manufacturing consistency for critical applications
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory standards
• External hex drive compatibility allowing standard wrench access for easy installation and maintenance

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 3/4"-10 UNC hex nut delivers critical performance where vibration resistance and structural integrity are paramount. The ASTM Grade 2H heavy-duty steel construction provides exceptional tensile strength, making it ideal for construction equipment, heavy machinery, and structural steel connections. The extra wide profile significantly increases bearing surface area, distributing clamping forces more effectively to prevent material deformation and maintain joint integrity under dynamic loads. With its coarse thread design, this nut offers faster installation in field applications while the Class 2B thread fit ensures reliable engagement without binding. These features combine to create a fastener solution that addresses common challenges of bolt relaxation, vibration-induced loosening, and premature failure in harsh operating environments.

Specification Summary & Compliance

This heavy-duty hex nut features 3/4"-10 UNC coarse threads with Class 2B thread fit tolerance for precise engagement. Dimensions include 1 1/4" width and 47/64" height with external hex drive configuration. Manufactured to ASTM A194 specifications using ASTM Grade 2H steel for guaranteed mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance compliance for global industrial applications.