S-92316A729 1/2"-13 x 4" 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 rating and 150,000 psi tensile strength, ensuring reliable performance under high stress.
• Superior corrosion resistance provided by the black-phosphate steel coating, extending service life in harsh industrial environments.
• Optimized for high-torque installation thanks to the external hex drive and 3/4" head width, allowing for secure fastening with standard tools.
• Enhanced load distribution and stability from the integrated flange, reducing the risk of loosening under vibration.
• Reliable and quick assembly with UNC coarse threading and Class 2A thread fit, ensuring consistent engagement and ease of use.
• Durable material performance backed by Rockwell C32 hardness, providing excellent wear resistance and longevity.
• Compliance with major industry standards including SAE J429 and environmental regulations like RoHS 3 and REACH, guaranteeing quality and safety.

Professional Applications & Engineering Value

This Grade 8 hex head screw is engineered to address critical challenges in heavy-duty industrial applications, such as construction machinery, automotive assemblies, and structural frameworks. The black-phosphate steel construction offers superior corrosion protection, reducing maintenance needs in corrosive settings. With a partially threaded design and UNC coarse threads, it ensures rapid installation and secure fastening in materials where vibration resistance is essential. The external hex drive and flanged head enhance torque application and distribute clamping force evenly, minimizing the risk of joint failure. Ideal for high-stress environments, this screw delivers consistent performance, meeting rigorous standards like SAE J429 for reliability in demanding engineering projects.

Specification Summary & Compliance

This screw features precise Class 2A thread fit and UNC coarse threading with a 1/2"-13 thread size, ensuring dimensional accuracy and compatibility. It complies with IFI 111/SAE J429 specifications for mechanical properties and is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, confirming its safety and regulatory adherence for industrial use.