S-90409A173 5/8"-11 x 1 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
- Maximum load-bearing capability with 150,000 PSI tensile strength for critical structural applications
- Superior durability and wear resistance achieved through Grade 8 steel construction and Rockwell C32 hardness
- Enhanced stability and vibration resistance provided by the integrated flange design
- Quick installation and reliable engagement with 5/8"-11 UNC coarse threading and Class 2A fit
- Secure torque application enabled by the external hex drive and 15/16" head width
- Full-thread engagement for maximum grip strength across the entire 1 1/2" length
- Compliance with industrial safety standards including RoHS 3 and REACH regulations
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional performance in demanding industrial environments where failure is not an option. The high-strength steel construction combined with Rockwell C32 hardness provides superior resistance to shear forces and fatigue, making it ideal for heavy machinery, structural steel connections, and automotive assemblies. The flanged design eliminates the need for separate washers while distributing clamping force evenly, preventing surface damage and maintaining joint integrity under extreme vibration. With 5/8"-11 UNC coarse threading and Class 2A fit, installation is efficient while ensuring precise thread engagement for maximum load distribution. These fully threaded screws offer consistent performance in construction equipment, industrial manufacturing, and transportation applications where reliability and compliance with SAE J429 standards are critical.
Specification Summary & Compliance
This heavy-duty fastener features precision 5/8"-11 UNC coarse threading with Class 2A fit for optimal thread engagement and dimensional accuracy. Manufactured to meet IFI 111 specifications where identified as SAE J429, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental responsibility and safety standards for industrial applications worldwide.
