S-91565A305 4-40 x 1/2" Threaded Rods

Key Features & Benefits at a Glance

• Exceptional tensile strength of 50,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Class 1A thread fit provides easier assembly and disassembly, saving time and labor costs in maintenance and production lines.
• Fully threaded design along the entire 1/2" length offers uniform engagement and flexibility in positioning for various industrial setups.
• Coarse UNC thread spacing enhances resistance to vibration loosening, ideal for machinery and equipment exposed to dynamic loads.
• Rockwell B61 hardness delivers superior durability and wear resistance, extending the service life of the rod in harsh environments.
• RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence, supporting sustainable and responsible manufacturing practices.
• Right-hand thread direction ensures compatibility with standard tools and components, streamlining installation processes.

Professional Applications & Engineering Value

This 4-40 UNC fully threaded steel rod is engineered to address common industrial challenges such as vibration-induced loosening and assembly inefficiencies. The coarse thread spacing and Class 1A thread fit provide quick, secure fastening in applications like machinery frames, electronic enclosures, and automotive assemblies, where precise alignment and easy adjustability are critical. Made from high-strength steel with a Rockwell B61 hardness, it withstands repetitive stress and corrosive conditions, reducing maintenance downtime. Its fully threaded design allows for versatile use in custom jigs, supports, and repair tasks, ensuring consistent performance in industrial threaded rods applications while meeting strict RoHS and REACH standards for environmental safety.

Specification Summary & Compliance

This rod adheres to UNC thread standards with a Class 1A thread fit for inch-based systems, ensuring dimensional accuracy and interchangeability. It features a 4-40 thread size, coarse spacing, and right-hand thread direction, manufactured to deliver reliable tensile strength and hardness. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for industrial use, supporting global supply chain standards.