S-92979A126 1/4"-20 x 1 1/4" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Flanged Hex Head Screws
Medium-Strength Grade 5 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 tensile strength of 110,000 PSI ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Zinc-plated steel construction provides excellent corrosion resistance, extending the screw's service life in various environmental conditions.
- Grade 5 strength classification guarantees consistent high performance and durability for industrial and construction uses.
- Flanged hex head with external drive offers superior grip and easier installation, minimizing tool slippage and speeding up assembly.
- Fully threaded UNC coarse pattern with Class 2A fit ensures quick, secure engagement and vibration resistance in coarse-thread applications.
- Compliance with SAE J429, RoHS 3, and REACH standards assures material quality and environmental safety for global supply chains.
- Rockwell C22 hardness provides excellent wear resistance, maintaining thread integrity through repeated use.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 5 hex head screw delivers reliable fastening in construction, machinery, and automotive assemblies. The zinc-plated steel material combats corrosion, while the UNC coarse thread and Class 2A thread fit ensure rapid installation and secure hold in coarse-threaded components. The external hex drive and flanged design prevent rounding and provide stable torque transmission, reducing assembly time and improving joint integrity. With a tensile strength of 110,000 PSI, it addresses the need for high-strength fasteners that withstand dynamic loads and vibrations, making it ideal for structural and mechanical systems requiring dependable, long-lasting connections.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and adheres to UNC coarse thread standards for consistent performance. Manufactured in compliance with IFI 111 / SAE J429 specifications, it meets Grade 5 strength requirements and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental and safety standards are upheld.
