S-90409A145 7/16"-14 x 2 1/2" 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 load-bearing capacity with 150,000 PSI tensile strength for reliable performance in high-stress applications
- Superior wear and corrosion resistance from Grade 8 steel construction and Rockwell C32 hardness rating
- Enhanced stability and vibration resistance through the integrated flange design that distributes load evenly
- Quick installation and removal with standard 5/8" external hex head compatible with common tools
- Secure fastening in various materials thanks to 7/16"-14 UNC coarse threading that resists loosening
- Precise thread engagement with Class 2A thread fit ensuring consistent performance and easy assembly
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe industrial use
Professional Applications & Engineering Value
This Grade 8 steel hex head screw delivers critical engineering solutions for heavy machinery, structural assemblies, and industrial equipment where failure is not an option. The partially threaded design provides optimal clamping force distribution while the flanged head eliminates the need for separate washers, reducing assembly time and potential failure points. With its 150,000 PSI tensile strength and Rockwell C32 hardness, this fastener withstands extreme vibration, shock loads, and environmental stresses common in construction, automotive, and manufacturing applications. The 7/16"-14 UNC coarse threading ensures reliable performance in both soft and hard materials, while the external hex drive accommodates high-torque installation without stripping.
Specification Summary & Compliance
This hex head screw features precise Class 2A thread fit tolerances and 7/16"-14 UNC coarse threading manufactured to exacting standards. The fastener complies with IFI 111/SAE J429 specifications for Grade 8 mechanical properties and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. With dimensions including 2 1/2" length, 5/8" head width, and 15/16" flange diameter, this screw delivers consistent performance across industrial applications requiring reliable, high-strength fastening solutions.
