S-90409A175 5/8"-11 x 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 strength for heavy loads: Grade 8 classification and 150,000 PSI tensile strength ensure reliable performance in high-stress industrial applications.
- Superior durability and wear resistance: Rockwell C32 hardness provides excellent resistance to deformation and extends service life under demanding conditions.
- Optimized for high-torque installation: External hex drive and flanged head design allow for secure tool engagement and increased clamping force without a separate washer.
- Reliable coarse threading: 5/8"-11 UNC thread form with Class 2A fit offers quick assembly and vibration resistance in various materials.
- Full threading for maximum grip: Fully threaded 2" length ensures consistent holding power across the entire fastener engagement.
- Compliance with industry standards: Meets IFI 111/SAE J429 specifications, guaranteeing consistent quality and interchangeability.
- Environmentally responsible manufacturing: RoHS 3 and REACH compliant for safe use in regulated industries and global markets.
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers critical reliability in heavy machinery, construction, and automotive assemblies where high tensile strength and vibration resistance are paramount. The steel construction with Rockwell C32 hardness prevents stripping and maintains clamp load under dynamic stresses. Its coarse UNC threads and Class 2A fit enable rapid installation in steel frames and castings, while the flanged head distributes pressure evenly, reducing surface damage. Fully threaded along its 2" length, it ensures maximum thread engagement in thick materials, making it ideal for structural connections, equipment mounting, and other industrial applications demanding 150,000 PSI tensile strength and compliance with SAE J429 standards.
Specification Summary & Compliance
This fastener features a 5/8"-11 UNC coarse thread with Class 2A tolerance for precise fit, manufactured to meet IFI 111 SAE J429 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.
