S-90602A213 1/4"-20 x 1" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with 150,000 psi tensile strength for reliable performance in high-stress environments
• Superior corrosion resistance due to zinc yellow-chromate plating, extending service life in harsh industrial conditions
• Precise thread engagement with Class 3A fit and UNC coarse threading for quick assembly and vibration resistance
• Enhanced torque transmission through the external hex drive and flanged design, distributing clamp load effectively
• Maximum hardness durability at Rockwell C32, minimizing wear and deformation under repeated use
• Full threading coverage along the 1" length for consistent grip and adjustable fastening depth
• Compliance with industry standards including SAE J429 and IFI 111, ensuring quality and interchangeability

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 8 hex head screw addresses critical challenges in machinery, construction, and automotive assemblies where failure is not an option. The zinc yellow-chromate plated steel construction provides a robust barrier against rust and chemical exposure, significantly reducing maintenance downtime. With its UNC coarse thread and Class 3A thread fit, it ensures rapid installation and secure holding power in high-vibration settings, such as engine components or structural frames. The flanged head eliminates the need for separate washers, streamlining inventory and assembly processes while the external hex drive allows for high-torque application with standard tools, enhancing workflow efficiency.

Specification Summary & Compliance

This fastener adheres to Class 3A thread tolerance for precise fit, with UNC coarse threading (1/4"-20) and fully threaded design. It meets SAE J429 and IFI 111 specifications, confirming its alignment with recognized industrial standards for high-strength bolts. The product complies with common regulatory requirements for industrial components, including RoHS and REACH, ensuring safety and environmental responsibility in procurement.