S-90409A144 7/16"-14 x 1 3/4" 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
- Maximum load-bearing capacity with 150,000 PSI tensile strength, ideal for high-stress industrial applications
- Superior durability and wear resistance thanks to Grade 8 steel construction and Rockwell C32 hardness
- Secure, vibration-resistant fastening provided by the integrated flange and coarse UNC thread design
- Easy installation and removal with standard external hex drive and 5/8" head width for common tools
- Precise thread engagement ensured by Class 2A thread fit for reliable performance in demanding conditions
- Full-length threading for maximum grip and uniform stress distribution along the entire 1 3/4" length
- Compliance with industry standards including SAE J429 and IFI 111, guaranteeing consistent quality and performance
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value in heavy machinery, construction, and automotive assemblies where failure is not an option. The 7/16"-14 UNC coarse thread provides superior resistance to loosening under vibration, while the flanged design eliminates the need for separate washers, reducing assembly time and part count. Manufactured from high-strength steel with Rockwell C32 hardness, it withstands extreme loads and harsh environments without compromising integrity. The fully threaded configuration ensures maximum clamping force distribution, making it ideal for structural connections, equipment frames, and high-pressure applications requiring 150,000 PSI tensile strength.
Specification Summary & Compliance
This heavy-duty fastener features precision Class 2A thread fit with 7/16"-14 UNC coarse threads and right-hand direction. Dimensions include 1 3/4" length, 15/32" head height, 5/8" head width, and 15/16" flange diameter. Manufactured to IFI 111 and SAE J429 specifications for Grade 8 fasteners. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.
