S-92323A608 5/8"-11 x 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 demanding applications, reducing the risk of fastener failure.
• Zinc-plated steel construction provides excellent corrosion resistance, extending service life in harsh industrial environments.
• UNC coarse threading enables faster installation and superior resistance to vibration loosening compared to fine threads.
• Integrated serrated flange eliminates the need for a separate washer, providing secure locking and preventing surface damage.
• Grade 5 classification and Class 2A thread fit guarantee consistent quality and dimensional accuracy for precise assembly.
• External hex drive design allows for high-torque application with standard tools, speeding up installation and maintenance.
• Full threading along the 2" length offers maximum grip and adjustability across the entire fastener.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel hex head screw is engineered to address critical challenges in heavy-duty industrial applications such as construction, machinery assembly, and structural frameworks. The UNC coarse thread design provides superior resistance to vibrational loosening, a common failure point in dynamic environments, while the serrated flange creates a permanent locking mechanism that distributes clamping force evenly. The zinc plating offers a robust barrier against corrosion, significantly extending maintenance intervals in outdoor or chemically aggressive settings. With its 110,000 PSI tensile strength and Rockwell C22 hardness, this fastener maintains integrity under extreme loads, making it an optimal choice for high-stress connections where reliability is paramount.

Specification Summary & Compliance

This 5/8"-11 hex head screw features Class 2A thread fit tolerances and UNC coarse threading per standard inch fastening specifications. Manufacturing and material quality comply with IFI 111 / SAE J429 standards for Grade 5 fasteners. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.