S-92316A814 5/8"-11 x 5" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Maximum Load-Bearing Capacity with 150,000 psi tensile strength and Grade 8 classification, ensuring reliable performance in high-stress industrial environments.
• Superior Corrosion Resistance from the black-phosphate steel coating, extending service life in harsh or outdoor conditions.
• Enhanced Grip and Stability due to the flange design, which distributes load evenly and eliminates the need for a separate washer.
• Quick and Secure Installation with UNC coarse threading and external hex drive, allowing for efficient assembly with standard tools.
• Precision Thread Fit meeting Class 2A standards, providing consistent engagement and reducing the risk of cross-threading.
• Optimized Strength-to-Weight Ratio with Rockwell C32 hardness, offering durability without excessive weight.
• Partial Threading Design that allows for unthreaded shank strength where maximum clamping force is required.

Professional Applications & Engineering Value

This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assembly, where high tensile strength and corrosion resistance are paramount. The black-phosphate steel construction provides a protective layer against rust and wear, making it ideal for outdoor or chemically exposed environments. Its UNC coarse threading ensures rapid installation and reliable hold in materials like steel and cast iron, while the flange design simplifies assembly by integrating a washer-like base, reducing component count and potential failure points. With a 5-inch length and partial threading, it offers versatility for applications requiring strong, unthreaded shank sections, such as structural bolting or equipment frames, delivering long-term engineering value through reduced maintenance and enhanced safety.

Specification Summary & Compliance

This fastener adheres to Class 2A thread fit tolerances and UNC coarse thread standards, ensuring precise compatibility. It meets IFI 111 specifications under SAE J429 for mechanical properties and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material restrictions.