S-92316A621 3/8"-16 x 5/8" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws
High-Strength Grade 8 Steel Flanged Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional load-bearing capacity with 150,000 psi tensile strength, ideal for high-stress industrial and automotive assemblies.
- Superior corrosion resistance due to the black phosphate steel coating, extending service life in harsh environments.
- High hardness rating of Rockwell C32 ensures minimal wear and deformation under repeated use.
- Reliable thread engagement with UNC coarse threading and Class 2A fit, preventing cross-threading and ensuring secure fastening.
- Integrated flange design distributes clamping force evenly, eliminating the need for separate washers and speeding up installation.
- External hex drive allows for high-torque application with standard tools, reducing installation time and effort.
- Full threading provides consistent grip along the entire length, enhancing holding power in various material thicknesses.
Professional Applications & Engineering Value
Engineered for demanding industrial and automotive applications, this Grade 8 hex head screw addresses critical needs for strength and durability. The black phosphate steel construction offers enhanced corrosion resistance, making it suitable for environments exposed to moisture, chemicals, or outdoor elements. Its UNC coarse thread and Class 2A fit ensure quick, reliable assembly with reduced risk of stripping, while the flanged head provides stable load distribution, minimizing surface damage. With a tensile strength of 150,000 psi and Rockwell C32 hardness, it withstands extreme vibrations and heavy loads, delivering long-term reliability in machinery, structural frames, and heavy-duty equipment where failure is not an option.
Specification Summary & Compliance
This screw features precise UNC 3/8"-16 coarse threads with a Class 2A thread fit for consistent dimensional accuracy. It meets SAE J429 specifications for Grade 8 fasteners and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
