S-90602A228 3/8"-16 x 3" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Maximum load-bearing capacity with 150,000 psi tensile strength and Grade 8 classification for critical, high-stress applications
• Superior corrosion resistance through zinc yellow-chromate plating that protects against harsh industrial environments
• Precise thread engagement with Class 3A fit and UNC coarse threads ensuring reliable fastening and vibration resistance
• Enhanced stability and load distribution thanks to the integrated flange design that eliminates the need for separate washers
• Optimized torque application with external hex drive and 9/16" head width for secure installation with standard tools
• Durable material performance featuring Rockwell C32 hardness that maintains integrity under repeated stress
• Industry-standard compliance meeting SAE J429 specifications for guaranteed quality and interchangeability

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these Grade 8 hex head screws deliver exceptional performance in heavy machinery, structural assemblies, and equipment manufacturing. The zinc yellow-chromate plated steel construction provides superior corrosion protection in challenging environments, while the partially threaded design and UNC coarse threads ensure optimal clamping force and vibration resistance. The integrated flange eliminates washer requirements, streamlining assembly processes and reducing component count. With 150,000 psi tensile strength and Rockwell C32 hardness, these heavy-duty fasteners maintain structural integrity under extreme loads, making them ideal for construction, automotive, and industrial equipment applications where failure is not an option.

Specification Summary & Compliance

This 3/8"-16 UNC hex head screw features Class 3A thread fit for precision engagement and meets IFI 111/SAE J429 specifications. The fastener maintains dimensional accuracy with 1" minimum thread length and 3" overall length, ensuring consistent performance across applications. Manufacturing complies with industry standards for Grade 8 strength classification, providing reliable performance in critical assemblies while meeting quality assurance requirements for industrial fastening solutions.