S-92979A332 3/8"-16 x 1/2" 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 superior corrosion resistance, extending service life in harsh industrial environments.
• Rockwell C22 hardness ensures excellent wear resistance and durability, maintaining structural integrity under heavy loads.
• Fully threaded UNC coarse design allows for faster installation and superior grip in a wide range of materials.
• Integrated flange eliminates the need for a separate washer, providing a larger bearing surface and simplifying assembly.
• External hex drive enables high-torque installation with common tools, ensuring secure fastening in mechanical and construction applications.
• Compliance with SAE J429, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations for safe, responsible sourcing.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel hex head screw is engineered to address critical challenges in heavy-duty industrial and construction applications. The combination of 110,000 PSI tensile strength and Rockwell C22 hardness ensures it withstands high stress and vibration, preventing loosening in machinery, structural frames, and equipment assemblies. The fully threaded UNC coarse spacing provides rapid installation and strong holding power in metals and composites, while the zinc plating protects against rust in outdoor or humid conditions. Its flanged design distributes clamp load effectively, reducing surface damage and simplifying maintenance. Ideal for automotive, manufacturing, and infrastructure projects, this screw delivers consistent performance where reliability is non-negotiable.

Specification Summary & Compliance

This fastener features a 3/8"-16 UNC thread with Class 2A fit, ensuring precise dimensional accuracy and compatibility with standard components. It meets IFI 111 specifications under SAE J429 for Grade 5 mechanical properties, and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial use without hazardous substances.