S-91565A823 4-40 x 1" Threaded Rods

Key Features & Benefits at a Glance

• High tensile strength of 50,000 psi ensures reliable load-bearing capacity and resistance to mechanical stress in demanding applications.
• Precision Class 1A thread fit provides smooth assembly and easy installation, reducing the risk of cross-threading and improving workflow efficiency.
• Fully threaded design along the entire 1" length offers maximum adjustability and secure fastening at any point.
• Coarse UNC threading with right-hand direction delivers quick assembly and disassembly, ideal for maintenance and repetitive use scenarios.
• Robust steel construction with Rockwell B61 hardness guarantees excellent wear resistance and long-term durability under harsh conditions.
• RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global industrial supply chains.
• Inch system compatibility simplifies integration with existing North American machinery and equipment standards.

Professional Applications & Engineering Value

This 4-40 UNC fully threaded steel rod is engineered to address common challenges in industrial fastening, such as vibration loosening and alignment issues. The coarse thread spacing and Class 1A thread fit facilitate rapid installation in tight spaces, reducing labor time while maintaining secure connections. Made from high-strength steel with a Rockwell B61 hardness, it withstands repetitive stress in machinery assembly, electronic enclosures, and automotive components. The fully threaded 1" length allows for versatile positioning, making it a go-to solution for adjustable fixtures, mounting brackets, and precision equipment where reliable, right-hand threaded retention is critical. Its compliance with RoHS 3 and REACH standards further supports use in regulated sectors, ensuring safety and sustainability.

Specification Summary & Compliance

This rod adheres to UNC thread standards with a Class 1A thread fit for external threads, ensuring dimensional accuracy and interchangeability. It features a 4-40 thread size, coarse spacing, and right-hand direction in the inch system, with a tensile strength of 50,000 psi and hardness of Rockwell B61. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety requirements for industrial use.