S-92316A249 3/4"-10 x 1 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, ideal for high-stress industrial applications.
- Superior corrosion resistance due to black-phosphate steel coating, extending service life in harsh environments.
- Enhanced stability and vibration resistance from the integrated flange, reducing the need for separate washers.
- Reliable coarse UNC threading with Class 2A fit for quick assembly and secure fastening in various materials.
- Optimized torque transfer via the external hex drive and 1 1/8" head width, allowing for easy installation with standard tools.
- Full threading along the 1 1/4" length ensures consistent grip and uniform stress distribution.
- Compliance with rigorous standards including SAE J429 and RoHS 3, guaranteeing quality and environmental safety.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where high tensile strength and durability are paramount. The black-phosphate steel construction provides a robust barrier against rust and chemical exposure, making it suitable for outdoor or corrosive settings. Its coarse UNC thread and Class 2A fit facilitate rapid installation while maintaining precision, reducing labor time and minimizing loosening under dynamic loads. The integrated flange distributes clamping force evenly, enhancing joint integrity and eliminating the risk of surface damage. Ideal for securing structural components, this fully threaded screw ensures reliable performance in demanding industrial applications, backed by compliance with SAE J429 and other key regulations.
Specification Summary & Compliance
This fastener adheres to precise dimensional standards, including UNC coarse threads with a Class 2A thread fit for consistent accuracy. It meets IFI 111 and SAE J429 specifications, ensuring reliable performance under high-stress conditions. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for industrial use.
