S-98427A200 5/8"-11 ASTM A563 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load distribution due to the extra wide profile, reducing the risk of surface damage and loosening under high vibration.
• Superior tensile strength and reliability from ASTM A563 Grade DH steel, ensuring dependable performance in heavy-duty structural applications.
• Easy and quick installation with the coarse 5/8"-11 UNC thread and Class 2B fit, providing smooth engagement and reducing assembly time.
• Enhanced durability and corrosion resistance through high-grade steel construction, extending service life in harsh industrial environments.
• Compliance with stringent environmental standards including RoHS 3 and REACH, making it safe for use in regulated industries worldwide.
• Optimized for high-torque applications with an external hex drive design, allowing for secure tightening with standard tools.
• Precise dimensional accuracy in inch measurements, ensuring consistent fit and interchangeability in machinery and equipment.

Professional Applications & Engineering Value

This heavy hex nut is engineered to address critical challenges in demanding sectors such as construction, heavy machinery, and infrastructure projects. The ASTM A563 Grade DH steel construction provides high strength-to-weight ratio, resisting deformation under extreme loads and vibrations. Its extra wide profile distributes clamping force more evenly, minimizing stress concentration on connected surfaces and preventing joint failure. The coarse UNC thread and Class 2B thread fit ensure reliable engagement in high-vibration environments, reducing maintenance needs. Ideal for industrial applications requiring robust fastening solutions, this nut offers long-term reliability and compliance with global standards, enhancing project safety and efficiency.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including a Class 2B thread fit for consistent accuracy and UNC coarse threading (5/8"-11) per industry norms. It meets ASTM A563 specifications for material and performance, ensuring high strength and durability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it is free from hazardous substances, supporting safe and sustainable use in various engineering applications.