S-92316A824 5/8"-18 x 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 tensile strength of 150,000 PSI ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-phosphate steel coating extends service life in harsh industrial environments.
- Full threading design provides maximum grip and uniform load distribution for enhanced holding power.
- Flanged head eliminates the need for a separate washer, simplifying installation and increasing surface contact area.
- Fine UNF threads with Class 2A fit offer precise engagement and vibration resistance in critical assemblies.
- High hardness (Rockwell C32) maintains thread integrity and durability under repetitive loads.
- Compliance with SAE J429, RoHS 3, and REACH ensures adherence to industry standards and environmental safety regulations.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 8 hex head screw addresses common challenges like vibration loosening and corrosion in machinery, construction, and automotive sectors. The black-phosphate steel coating provides a robust barrier against moisture and chemicals, while the fully threaded and flanged design ensures even stress distribution and quick assembly. With its UNF fine thread and external hex drive, it delivers secure fastening in high-torque scenarios, minimizing maintenance needs and downtime. Ideal for structural frames, engine components, and equipment requiring high tensile strength and long-term reliability.
Specification Summary & Compliance
This screw features a 5/8"-18 UNF thread with Class 2A fit for precise tolerance, manufactured to meet IFI 111 / SAE J429 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. Dimensions include a 2" length, 15/16" head width, and 1 21/64" flange diameter, supporting consistent performance in standardized assemblies.
