S-90409A130 3/8"-16 x 5/8" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in demanding applications
• Superior wear resistance due to Rockwell C32 hardness, ensuring long service life and reduced replacement frequency
• Easy installation and removal with external hex drive and coarse UNC threading, minimizing assembly time in industrial settings
• Enhanced stability and distribution provided by the integrated flange, reducing the risk of loosening under vibration
• Consistent dimensional accuracy with Class 2A thread fit, ensuring precise mating with nuts and threaded holes
• Full-threaded design for maximum grip and holding power across the entire 5/8" length
• Compliance with industry standards including SAE J429, guaranteeing quality and interoperability in machinery and equipment

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 8 hex head screw addresses critical challenges in machinery assembly, construction, and automotive sectors. The steel material combined with UNC coarse threading ensures rapid installation and high resistance to vibrational loosening, making it ideal for equipment subjected to dynamic loads. The external hex drive allows for efficient torque application with standard tools, while the flanged design eliminates the need for separate washers, streamlining inventory and reducing assembly complexity. With a tensile strength of 150,000 psi, it provides reliable fastening in structural connections, engine components, and heavy machinery where failure is not an option.

Specification Summary & Compliance

This fastener meets IFI 111 specifications under SAE J429 for Grade 8 requirements, ensuring consistent thread fit Class 2A and dimensional accuracy in inch measurements. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances for safe use in various industries. The product adheres to standardized UNC coarse thread profiles and is manufactured to deliver reliable performance in alignment with industrial fastener protocols.