S-92979A360 3/8"-16 x 2" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 psi provides reliable performance in demanding applications, reducing the risk of fastener failure.
• Zinc-plated steel construction offers excellent corrosion resistance, extending the service life of your assemblies in various environments.
• Grade 5 classification and Rockwell C22 hardness ensure high durability and resistance to wear, maintaining integrity under heavy loads.
• Flanged hex head design eliminates the need for a separate washer, providing a larger bearing surface for improved load distribution and faster installation.
• 3/8"-16 UNC coarse threads enable quicker assembly and better performance in materials where fine threads might strip or cross-thread.
• Class 2A thread fit ensures consistent, reliable engagement with standard nuts and tapped holes, minimizing assembly issues.
• Partial threading allows for precise clamping force control, ideal for applications where specific unthreaded shaft length is required.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 5 zinc-plated steel hex head screw addresses critical challenges in machinery assembly, structural frameworks, and automotive components. The external hex drive and coarse UNC thread design facilitate rapid installation with standard tools, reducing labor time while the flanged head distributes clamping force effectively to prevent material damage. The combination of high tensile strength and corrosion-resistant zinc plating ensures long-term reliability in environments subject to vibration, dynamic loads, and exposure to moisture. This partially threaded screw is particularly valuable in applications requiring precise grip length, providing secure fastening in construction, manufacturing, and equipment maintenance where SAE J429 compliance is mandated.

Specification Summary & Compliance

This fastener meets Class 2A thread fit tolerances for consistent engagement and is manufactured in accordance with IFI 111 specifications SAE J429. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial use.