S-90602A267 5/8"-11 x 6" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance provided by zinc yellow-chromate plating that extends service life in harsh environments
• Enhanced durability through Rockwell C32 hardness rating that maintains structural integrity under repeated stress
• Optimized thread engagement with UNC coarse threading that facilitates faster assembly and reduces cross-threading risks
• Secure flange design that eliminates the need for separate washers while providing superior load distribution
• Precision manufacturing ensuring Class 2A thread fit for consistent performance and easy installation
• Industry compliance meeting IFI 111/SAE J429 specifications for guaranteed quality and reliability

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers exceptional engineering value for heavy-duty industrial applications where failure is not an option. The combination of zinc yellow-chromate plated steel construction and 150,000 psi tensile strength addresses critical challenges in construction, machinery assembly, and structural applications requiring both corrosion resistance and high load capacity. The UNC coarse threading ensures reliable performance in vibration-prone environments, while the external hex drive provides superior torque transmission during installation. The flanged design eliminates washer requirements while distributing clamp load effectively, making these industrial hex bolts ideal for equipment manufacturing, structural steel connections, and heavy machinery where durability and reliability are paramount.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit standards with UNC coarse threading (5/8"-11) and minimum 1½" thread length. This Grade 8 hex head screw complies with IFI 111/SAE J429 specifications and features Rockwell C32 hardness rating. The zinc yellow-chromate plating provides corrosion protection while maintaining dimensional accuracy. The fastener meets industry standards for heavy-duty applications with its 6" length and flanged design, ensuring reliable performance in demanding industrial environments.