S-98427A250 3/4"-10 ASTM A563 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load distribution thanks to the extra wide profile, reducing surface pressure and preventing material damage in heavy-duty applications.
• Superior mechanical strength with ASTM A563 Grade DH certification, ensuring reliable performance under high stress and vibration.
• Easy and secure installation provided by the Class 2B thread fit and coarse (UNC) thread spacing, allowing for quick assembly and reduced cross-threading risk.
• Enhanced durability and corrosion resistance from high-quality steel construction, suitable for demanding industrial environments.
• Broad compatibility with standard 3/4"-10 UNC bolts and right-hand thread systems, simplifying inventory and replacement.
• Compliance with stringent regulations including RoHS 3 and REACH, making it safe for use in regulated industries and global markets.
• Optimized for external hex drive tools ensuring a firm grip and efficient torque application during installation and maintenance.

Professional Applications & Engineering Value

This heavy-duty hex nut is engineered to address critical challenges in industrial settings, such as structural integrity and long-term reliability. The extra wide profile significantly increases the bearing surface, distributing clamping force more evenly to prevent joint loosening and surface indentation in soft materials. Made from robust steel and meeting ASTM A563 Grade DH standards, it provides high tensile strength for applications in construction, machinery, and transportation where vibration resistance is essential. The coarse UNC threads and Class 2B thread fit ensure quick, secure fastening with common bolts, reducing assembly time and minimizing the risk of thread damage. Its RoHS 3 and REACH compliance further supports use in environmentally conscious and regulated industries, offering peace of mind for engineers and procurement specialists.

Specification Summary & Compliance

This nut features precise Class 2B thread fit and UNC coarse thread spacing with a 3/4"-10 thread size, adhering to standardized inch system measurements. It complies with ASTM A563 manufacturing specifications for Grade DH, ensuring consistent quality and performance. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety standards for hazardous substances.