S-90738A190 5/8"-11 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Grade 5 classification, ensuring dependable performance in demanding applications.
• Superior corrosion resistance due to zinc-plated steel construction, extending service life in harsh industrial environments.
• Secure left-hand thread engagement prevents loosening under counter-clockwise rotational forces, ideal for specific machinery and equipment.
• Precise Class 2B thread fit guarantees consistent mating with corresponding bolts, reducing assembly time and improving joint integrity.
• Wide compatibility with 5/8"-11 UNC coarse thread bolts, offering versatility across various industrial fastening systems.
• Easy installation and removal using standard wrenches on the external hex drive, facilitating efficient maintenance and repairs.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.

Professional Applications & Engineering Value

This Grade 5 hex nut is engineered to address critical challenges in industrial settings where left-hand threading is essential to prevent unintended loosening from standard rotational forces. Made from zinc-plated steel, it provides robust corrosion resistance, making it suitable for outdoor machinery, automotive assemblies, and heavy equipment that face exposure to moisture and chemicals. The UNC coarse thread design ensures quick assembly and high resistance to vibration, reducing maintenance downtime. Its standard external hex drive allows for easy torque application with common tools, enhancing workflow efficiency in manufacturing, construction, and repair operations where reliable, reversible fastening is paramount.

Specification Summary & Compliance

This nut adheres to UNC coarse thread standards with a 5/8"-11 thread size and Class 2B thread fit for precise dimensional accuracy. Manufactured from zinc-plated steel, it meets Grade 5 strength requirements, supporting high-stress applications. Dimensions include a width of 15/16" and height of 35/64". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial use.