S-92316A634 3/8"-16 x 2 1/2" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from black-phosphate steel coating prolongs service life in harsh industrial environments.
• High hardness rating (Rockwell C32) provides excellent wear resistance and durability under repetitive loads.
• Flanged design eliminates the need for separate washers, simplifying installation and providing better load distribution.
• Coarse UNC threading with Class 2A fit enables quick assembly and secure fastening in various materials.
• Partially threaded shank allows for precise clamping force control where full thread engagement isn't required.
• External hex drive delivers maximum torque transmission for secure installations using standard tools.

Professional Applications & Engineering Value

These Grade 8 hex head screws deliver critical engineering solutions for heavy-duty industrial applications where structural integrity is paramount. The black-phosphate steel construction provides superior protection against corrosion in demanding environments, while the flanged design eliminates washer requirements, reducing assembly time and potential failure points. The 3/8"-16 UNC coarse thread configuration ensures reliable performance in vibration-prone applications, maintaining secure connections in machinery, construction equipment, and automotive assemblies. With partial threading, these fasteners offer precise clamping control for applications requiring specific unthreaded shank sections, making them ideal for structural connections and equipment manufacturing where high tensile strength and corrosion resistance are essential.

Specification Summary & Compliance

Manufactured to exacting standards with Class 2A thread fit tolerance and UNC coarse thread spacing for consistent performance. Complies with IFI 111 specifications where identified as SAE J429 for Grade 8 mechanical properties. Meets environmental regulations including RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant standards, ensuring safe use across industrial sectors. The external hex drive and precise dimensional specifications guarantee compatibility with standard industrial tools and applications.