S-91565A551 1/4"-20 x 2 1/4" 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 generous tolerances for easier assembly and disassembly, saving time and labor costs during installation and maintenance.
• Fully threaded design along the entire 2-1/4" length offers versatile fastening points and consistent engagement for secure connections across various materials.
• UNC coarse threading enables quick installation and superior resistance to vibration loosening compared to fine threads, enhancing operational stability.
• Right-hand thread direction aligns with standard industrial practices, ensuring compatibility with common tools and reducing assembly errors.
• Rockwell B61 hardness provides excellent wear resistance and durability, extending the service life of the rod in abrasive or high-usage environments.
• Full compliance with RoHS 3 and REACH regulations guarantees environmental safety and material reliability, meeting global standards for industrial components.

Professional Applications & Engineering Value

This 1/4"-20 UNC fully threaded steel rod is engineered to address common industrial challenges such as structural instability and assembly inefficiencies. The coarse thread spacing and Class 1A thread fit facilitate rapid installation in construction, machinery, and automotive frameworks, where time-sensitive projects demand quick yet secure fastening. Its high tensile strength and Rockwell B61 hardness ensure it withstands dynamic loads and environmental stressors, making it ideal for heavy-duty applications like support braces, conveyor systems, and equipment mounts. By combining robust steel material with standardized UNC threading, this rod minimizes the risk of cross-threading and provides consistent performance in repetitive disassembly scenarios, enhancing overall engineering reliability and reducing maintenance downtime.

Specification Summary & Compliance

This threaded rod adheres to UNC thread standards with a Class 1A thread fit for external threads, ensuring dimensional accuracy and interchangeability. It features a coarse thread spacing and right-hand direction, manufactured to deliver precise engagement. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.