S-90602A268 3/4"-10 x 1 1/4" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional strength for heavy loads with Grade 8 classification and 150,000 PSI tensile strength, ensuring reliable performance in demanding industrial applications.
• Superior corrosion resistance thanks to zinc yellow-chromate plating on steel, extending service life in harsh environments.
• Easy installation and removal with an external hex drive and coarse UNC threads, reducing assembly time and effort.
• Enhanced stability and load distribution from the flanged design, minimizing the risk of loosening under vibration.
• Consistent thread engagement with Class 2A fit and fully threaded shank, providing secure fastening and reducing the chance of cross-threading.
• High durability and wear resistance due to Rockwell C32 hardness, maintaining integrity under repetitive stress.
• Compliance with industry standards such as IFI 111 and SAE J429, ensuring quality and reliability for professional use.

Professional Applications & Engineering Value

This Grade 8 hex head screw is engineered to address critical challenges in heavy-duty sectors like construction, machinery assembly, and industrial equipment. The zinc yellow-chromate plated steel construction offers robust protection against corrosion, which is essential in environments exposed to moisture or chemicals. With a coarse UNC thread and Class 2A fit, it ensures quick and secure fastening, reducing installation errors and downtime. The flanged feature distributes clamping force evenly, preventing surface damage and enhancing joint integrity under high vibration. Ideal for applications requiring 150,000 PSI tensile strength and Rockwell C32 hardness, this screw delivers long-lasting performance in structural frameworks, automotive systems, and heavy machinery, where failure is not an option.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including Class 2A thread fit and UNC coarse thread specifications, ensuring compatibility and ease of use. It meets IFI 111 and SAE J429 standards, confirming its quality and performance in industrial applications. The manufacturing process follows rigorous guidelines for material and threading, with compliance to common industry regulations such as RoHS and REACH for environmental safety, making it a reliable choice for professional procurement.