S-92323A526 1/4"-20 x 2 1/4" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws
Medium-Strength Grade 5 Steel Serrated-Flange 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
- Enhanced corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments.
- High tensile strength of 110,000 psi ensures reliable performance under heavy loads, reducing the risk of fastener failure.
- Rockwell C22 hardness provides excellent wear resistance, maintaining structural integrity through repeated use.
- Coarse UNC threading allows for quick and easy installation, saving time in assembly and maintenance tasks.
- External hex drive with flange and serrations offers secure, non-slip tightening and eliminates the need for separate washers.
- Class 2A thread fit ensures consistent, precise engagement with nuts and tapped holes for uniform clamping force.
- Full threading along the 2 1/4" length provides maximum grip and adjustability in various material thicknesses.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this Grade 5 zinc-plated steel hex head screw addresses common challenges like vibration loosening and corrosion. The UNC coarse thread design facilitates faster assembly in materials such as steel and cast iron, while the external hex drive allows for high-torque application with standard tools. Featuring a flange with serrations, it provides a locked, flush fit that distributes load evenly and resists rotation under stress. Ideal for machinery, automotive, and structural applications, this screw ensures long-term reliability with its 110,000 psi tensile strength and compliant surface treatment, meeting rigorous industry standards for safety and performance.
Specification Summary & Compliance
This fastener adheres to Class 2A thread fit tolerances and UNC coarse thread standards, manufactured in accordance with SAE J429 (IFI 111) specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability for global industrial use.
