S-92323A550 3/8"-16 x 1/2" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 PSI provides reliable performance in high-stress 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 repeated use.
• Flanged design with serrations eliminates the need for separate washers and provides secure, vibration-resistant locking.
• UNC coarse thread with Class 2A fit enables quick installation and reliable engagement in a wide range of materials.
• Fully threaded shank allows for maximum grip length and uniform load distribution across the entire fastener.
• External hex drive facilitates easy installation and removal with standard tools, improving assembly efficiency.

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers critical engineering value through its zinc-plated steel construction and fully threaded UNC coarse thread design. The combination of 110,000 PSI tensile strength and Rockwell C22 hardness addresses common industrial challenges such as vibration loosening and material fatigue in heavy machinery, structural frameworks, and automotive assemblies. The flanged design with serrated locking provides built-in vibration resistance, eliminating the need for additional locking components while maintaining clamp load integrity. These features make it particularly suitable for industrial applications requiring reliable fastening under dynamic loads and harsh environmental conditions, offering engineers a robust solution that combines high strength with corrosion protection.

Specification Summary & Compliance

This fastener features 3/8"-16 UNC coarse threads with Class 2A thread fit for standard industrial applications. Manufactured to meet SAE J429 specifications for Grade 5 requirements, it ensures consistent dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial supply chains requiring verified material safety standards.