S-90738A170 1/2"-13 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional strength and durability with Grade 5 classification, ensuring reliable performance in high-stress and heavy-duty applications.
• Superior corrosion resistance provided by zinc-plated steel, extending the nut's lifespan in harsh industrial environments.
• Secure and precise fit with Class 2B thread tolerance, minimizing the risk of loosening under vibration and dynamic loads.
• Easy installation and removal using standard wrenches, thanks to the external hex drive and standard hex nut profile.
• Reliable left-hand threading for specialized applications where reverse rotation is required to prevent unintended loosening.
• Wide compatibility with UNC coarse thread (1/2"-13) fasteners, commonly used in industrial machinery and equipment.
• Compliance with environmental and safety standards, including RoHS 3 and REACH, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel hex nut is engineered to address critical challenges in demanding industrial settings. Its left-hand UNC coarse threading (1/2"-13) is specifically designed for applications where standard right-hand threads may loosen due to rotational forces, such as in rotating machinery, conveyor systems, and heavy equipment. The zinc-plated steel construction provides a robust barrier against rust and corrosion, significantly reducing maintenance needs and downtime in environments exposed to moisture, chemicals, or outdoor conditions. With a Class 2B thread fit, it ensures consistent engagement and clamping force, preventing failures in high-vibration scenarios. This nut is ideal for use in automotive, construction, and manufacturing industries, offering reliable fastening solutions that enhance operational safety and equipment longevity.

Specification Summary & Compliance

This hex nut features a 1/2"-13 UNC coarse thread with Class 2B thread fit for precise dimensional accuracy and secure mating. It adheres to inch system standards and is manufactured from zinc-plated steel with an external hex drive and standard profile (3/4" width, 7/16" height). The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety requirements for industrial use.