S-92316A807 5/8"-11 x 3 1/4" 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 for reliable performance in high-stress applications.
- Superior corrosion resistance due to the black-phosphate steel coating, extending service life in harsh industrial environments.
- Enhanced grip and vibration resistance from the partial threading and coarse UNC thread design, reducing the risk of loosening.
- Easy installation and high torque capability with the external hex drive and flanged head, allowing for secure fastening without separate washers.
- Precise thread fit with Class 2A tolerance ensuring consistent engagement and reducing cross-threading issues.
- Compliance with rigorous industry standards including SAE J429, RoHS 3, and REACH, guaranteeing safety and environmental responsibility.
- Versatile heavy-duty use in construction and machinery, thanks to the robust Grade 8 strength and 3 1/4" length for deep material penetration.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, structural assemblies, and industrial equipment where failure is not an option. Made from black-phosphate steel, it combats rust and wear in demanding conditions, while the UNC coarse threading and partial thread design provide superior holding power and reduce stress concentration points. The external hex drive and flanged feature simplify installation, minimizing assembly time and enhancing joint integrity. Ideal for applications requiring high tensile strength and durability, such as construction frameworks and automotive components, this screw ensures long-term reliability and performance under extreme loads.
Specification Summary & Compliance
This fastener adheres to precise inch system dimensions, including a thread size of 5/8"-11 UNC with Class 2A thread fit for accurate engagement. It meets SAE J429 specifications for Grade 8 bolts, ensuring consistent mechanical properties. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms it is free from hazardous substances, supporting safe and sustainable industrial use.
