S-92316A816 5/8"-11 x 6" 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 the most demanding heavy-duty applications, reducing the risk of fastener failure.
- Superior corrosion resistance provided by the black phosphate steel coating, extending the screw's service life in harsh industrial environments.
- High-strength Grade 8 classification and Rockwell C32 hardness guarantee consistent durability and resistance to wear under high stress.
- Integrated flange design eliminates the need for a separate washer, providing a larger bearing surface for more secure and stable fastening.
- UNC coarse threading with Class 2A fit allows for faster installation and reduced cross-threading risk, improving assembly efficiency.
- Partially threaded shank provides an unthreaded section for enhanced shear strength and precise clamping force on connected materials.
- External hex drive offers high torque capability and compatibility with standard tools, facilitating quick and secure tightening.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 8 hex head screw is built to withstand extreme mechanical stresses in construction, machinery assembly, and automotive frameworks. The black-phosphate steel material provides a robust barrier against rust and corrosion, crucial for outdoor or high-moisture environments. Its UNC coarse thread design ensures rapid installation and reliable holding power in structural components, while the flange distributes clamping force evenly to prevent material damage. The partial threading enhances resistance to vibrational loosening, making it an ideal high-strength fastener for critical joints where safety and longevity are paramount.
Specification Summary & Compliance
This screw adheres to precise dimensional standards with a Class 2A thread fit and UNC coarse threading (5/8"-11). It meets SAE J429 specifications for Grade 8 mechanical properties and is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances and suitable for global industrial use.
