S-92316A806 5/8"-11 x 3" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional strength for demanding applications with Grade 8 classification and a tensile strength of 150,000 psi, ensuring reliable performance under high stress.
• Superior corrosion resistance provided by the black phosphate steel finish, extending the screw's service life in harsh industrial environments.
• Enhanced durability and wear resistance from Rockwell C32 hardness, maintaining structural integrity through repeated use and vibration.
• Secure and stable fastening with the integrated flange, which acts as a built-in washer to distribute load and prevent loosening.
• Easy installation and high torque capability thanks to the external hex drive and 15/16" head width, allowing for efficient assembly with standard tools.
• Reliable thread engagement with UNC coarse threads and Class 2A fit, ensuring consistent performance and reducing the risk of cross-threading in coarse-grained materials.
• Compliance with major industry standards including IFI 111/SAE J429, RoHS 3, and REACH, guaranteeing quality and environmental safety for global supply chains.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 8 hex head screw addresses critical challenges in machinery, construction, and automotive assemblies where high tensile strength and corrosion resistance are paramount. The black phosphate steel material provides a protective layer that withstands exposure to moisture and chemicals, reducing maintenance costs and downtime. The partially threaded design with a UNC coarse thread offers optimal grip in softer materials or where vibration resistance is needed, while the flange eliminates the need for a separate washer, streamlining inventory and assembly processes. This screw is ideal for structural frames, heavy equipment, and other scenarios demanding long-term reliability and compliance with stringent specifications like SAE J429.

Specification Summary & Compliance

This screw features a 5/8"-11 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy, ensuring consistent performance. It is manufactured in accordance with IFI 111 SAE J429 standards, confirming adherence to recognized engineering guidelines. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally safe and sustainable procurement practices.