S-92979A118 1/4"-20 x 3/4" 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 service life in various industrial environments.
- Flanged hex head design eliminates the need for a separate washer, offering faster installation and increased load distribution.
- Fully threaded UNC coarse thread with Class 2A fit enables quick assembly and superior grip in a wide range of materials.
- Grade 5 strength classification guarantees consistent high performance, meeting rigorous SAE J429 standards for quality assurance.
- External hex drive allows for high torque application with common tools, ensuring secure and efficient fastening.
- Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance for global industrial use.
Professional Applications & Engineering Value
This Grade 5 zinc-plated steel hex head screw is engineered to address critical challenges in industrial assembly, such as vibration resistance and structural integrity. The UNC coarse threading and fully threaded design provide excellent holding power in metal, wood, and composite materials, reducing loosening under dynamic loads. Its flanged head distributes clamping force evenly, preventing surface damage and simplifying installation in automotive, machinery, and construction applications. With a Rockwell C22 hardness and high tensile strength, it withstands extreme conditions while the zinc plating offers durable protection against corrosion, ensuring long-term reliability in harsh environments.
Specification Summary & Compliance
This fastener features precise Class 2A thread fit and adheres to UNC thread standards for consistent performance. It meets IFI 111 specifications under SAE J429 for mechanical properties and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are upheld.
