S-90602A263 5/8"-11 x 3 1/2" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws
High-Strength Grade 8 Steel Flanged Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional load-bearing capacity with 150,000 PSI tensile strength and Rockwell C32 hardness, ideal for high-stress industrial applications.
- Superior corrosion resistance due to zinc yellow-chromate plating, extending service life in harsh environments.
- Enhanced stability and vibration resistance from the integrated flange design, reducing the need for separate washers.
- Reliable and easy installation with a coarse UNC thread and external hex drive, ensuring quick assembly and disassembly.
- Precise thread fit with Class 2A tolerance, providing consistent performance and reducing the risk of cross-threading.
- Versatile partial threading allowing for secure fastening in materials where full threading isn't required.
- Compliance with industry standards including SAE J429 and IFI 111, guaranteeing quality and interchangeability.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered for heavy-duty applications where failure is not an option. The zinc yellow-chromate plated steel construction offers robust corrosion resistance, making it suitable for outdoor machinery, construction equipment, and automotive assemblies exposed to moisture and chemicals. Its partially threaded design with UNC coarse threads ensures strong grip in thick materials, while the external hex drive and flange provide superior torque transmission and distribute clamping force evenly, preventing loosening under vibration. By meeting SAE J429 standards, it delivers consistent performance in critical joints, reducing maintenance downtime and enhancing operational safety in industrial settings.
Specification Summary & Compliance
This fastener features a 5/8"-11 UNC coarse thread with Class 2A thread fit for precise engagement, and a length of 3 1/2". It complies with IFI 111 SAE J429 specifications, ensuring adherence to recognized industrial standards for material and mechanical properties. The product is manufactured to meet common industry requirements for quality and performance.
