S-92316A718 1/2"-13 x 1 3/4" 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 for reliable performance in high-stress applications
- Superior corrosion resistance thanks to black-phosphate steel coating that extends service life in harsh environments
- Optimized torque transfer through external hex drive design ensuring secure installation and removal
- Enhanced vibration resistance with flanged design that distributes clamping force and prevents loosening
- Precise thread engagement with Class 2A UNC coarse threads for quick assembly and reduced cross-threading risk
- Maximum thread coverage through full threading along the entire 1 3/4" length for superior grip strength
- Industry-standard compliance meeting IFI 111/SAE J429 specifications for guaranteed quality and performance
Professional Applications & Engineering Value
These Grade 8 hex head screws deliver critical engineering solutions for industrial applications where failure is not an option. The black-phosphate steel construction provides essential corrosion protection in manufacturing environments exposed to moisture and chemicals, while the 150,000 PSI tensile strength and Rockwell C32 hardness ensure structural integrity under extreme mechanical loads. The combination of UNC coarse threading and Class 2A thread fit enables rapid assembly in heavy equipment, construction machinery, and automotive systems, reducing installation time while maintaining precision. The integrated flanged design eliminates the need for separate washers, streamlining inventory and providing superior surface distribution to prevent material damage in high-clamp force applications.
Specification Summary & Compliance
Manufactured to exacting IFI 111/SAE J429 standards with Class 2A thread fit tolerance for consistent performance. Features 1/2"-13 UNC coarse threads with right-hand orientation and external hex drive. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global industrial markets. The Grade 8 classification guarantees mechanical properties including specified tensile strength and hardness values for critical fastening applications.
