S-92316A722 1/2"-13 x 2 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, ideal for high-stress industrial assemblies
- Superior corrosion resistance from the black-phosphate steel coating, extending service life in harsh environments
- Reliable thread engagement with UNC coarse threads and Class 2A fit, ensuring secure fastening and vibration resistance
- Enhanced stability and load distribution due to the integrated flange design, reducing the need for separate washers
- Optimized for heavy torque applications featuring an external hex drive and Grade 8 strength classification
- Precision partial threading allows for controlled clamping force on specific joint sections
- Compliance with major industrial standards including SAE J429, guaranteeing consistent performance and interchangeability
Professional Applications & Engineering Value
Engineered for demanding industrial environments, this Grade 8 hex head screw delivers critical reliability in construction, machinery, and heavy equipment applications. The black-phosphate steel provides a durable barrier against rust and abrasion, significantly reducing maintenance cycles. Its 1/2"-13 UNC coarse thread and partial threading design prevent loosening under dynamic loads, while the flanged head distributes pressure evenly to protect softer materials. With a Rockwell C32 hardness and high tensile strength, it withstands extreme forces, making it a trusted choice for structural connections and high-vibration assemblies where failure is not an option.
Specification Summary & Compliance
This fastener adheres to Class 2A thread fit tolerances and UNC coarse thread standards for precise compatibility. It meets IFI 111 / SAE J429 specifications for Grade 8 mechanical properties, ensuring consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, supporting environmentally responsible manufacturing and use in regulated industries.
