S-92323A527 1/4"-20 x 2 1/2" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 psi ensures reliable performance in heavy-duty applications, reducing the risk of fastener failure under high stress.
• Zinc-plated steel construction provides excellent corrosion resistance, extending service life in harsh industrial or outdoor environments.
• Coarse UNC threading with Class 2A fit allows for quick and easy installation, minimizing assembly time and improving productivity.
• Flanged hex head with serrations offers superior locking capability, preventing loosening from vibrations in machinery and automotive uses.
• Fully threaded design ensures consistent grip along the entire length, providing uniform clamping force for secure fastening.
• Grade 5 strength classification and Rockwell C22 hardness deliver dependable durability, meeting rigorous standards for industrial and construction projects.
• Compliance with SAE J429, RoHS 3, and REACH guarantees adherence to safety and environmental regulations, ensuring suitability for global supply chains.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel hex head screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in demanding environments. The UNC coarse thread and external hex drive facilitate rapid installation in automotive assemblies, construction frameworks, and heavy machinery, where time efficiency is critical. The flanged design with serrations enhances locking performance, reducing maintenance needs in high-vibration applications. Made from robust steel with a zinc plating finish, it resists rust and wear, ensuring long-term reliability in outdoor or humid conditions. Ideal for sectors requiring high tensile strength and compliance with industry standards, this screw provides a cost-effective solution for secure, durable fastening in structural and mechanical systems.

Specification Summary & Compliance

The screw features precise Class 2A thread fit and UNC coarse threading for consistent engagement, manufactured to meet IFI 111 specifications under SAE J429. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are upheld. With a tensile strength of 110,000 psi and Rockwell C22 hardness, it adheres to strict quality controls for industrial use.