S-92316A236 5/8"-11 x 3 3/4" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 PSI ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-phosphate steel coating extends service life in harsh environments, minimizing maintenance and replacement costs.
• Heavy-duty Grade 8 classification and Rockwell C32 hardness provide consistent durability and load-bearing capacity for demanding mechanical assemblies.
• Partially threaded design with UNC coarse spacing allows for secure clamping and easier alignment in thick materials, improving installation efficiency.
• Class 2A thread fit and external hex drive enable quick, precise tightening with standard tools, reducing assembly time and labor.
• Integrated flange distributes load evenly and eliminates the need for separate washers, streamlining inventory and assembly processes.
• Compliance with SAE J429, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations, supporting responsible sourcing and usage.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 8 hex head screw delivers robust performance in construction, machinery, and automotive assemblies where high tensile strength and corrosion resistance are critical. The black-phosphate steel finish combats rust and wear in exposed or humid conditions, while the UNC coarse thread and partial threading enhance grip and reduce cross-threading risks in thick metal or composite materials. With an external hex drive and flanged design, it simplifies installation and provides stable clamping force, making it ideal for structural frames, equipment mounts, and other high-stress fastening scenarios that demand reliability and compliance with SAE J429 standards.

Specification Summary & Compliance

This screw features precise Class 2A thread fit and UNC coarse threading with a 5/8"-11 thread size, ensuring dimensional accuracy per industry norms. It meets IFI 111 specifications under SAE J429 for mechanical properties, and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial use.