S-90602A233 1/2"-13 x 1 1/2" 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 and Grade 8 classification, this screw reliably handles high-stress applications without failure.
• Superior Corrosion Resistance – Zinc yellow-chromate plating provides durable protection against rust and environmental degradation, extending service life in harsh conditions.
• Precision Thread Fit – Class 3A UNC coarse threads ensure secure, vibration-resistant fastening with minimal risk of loosening under dynamic loads.
• Enhanced Stability & Distribution – The integrated flange design distributes clamping force evenly, reducing surface damage and improving joint integrity.
• Optimized for Heavy Torque – External hex drive and Rockwell C32 hardness allow for high torque application with standard tools, preventing stripping during installation.
• Full Thread Engagement – Fully threaded shank maximizes grip length and adjustability across varied material thicknesses.
• Regulatory Compliance – Meets IFI 111/SAE J429, RoHS 3, and REACH standards, ensuring safety and environmental responsibility in global supply chains.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this Grade 8 hex head screw combines zinc yellow-chromate plated steel construction with UNC coarse threading to address critical challenges in machinery assembly, structural framing, and heavy equipment maintenance. The flanged design eliminates the need for separate washers, speeding up installation while providing superior bearing surface support. Its 150,000 psi tensile strength and Class 3A thread fit ensure reliable performance under extreme vibration and tensile loads, reducing maintenance downtime. Ideal for construction, automotive, and manufacturing sectors where corrosion-resistant fasteners with verified SAE J429 compliance are essential for long-term operational safety and efficiency.

Specification Summary & Compliance

This fully threaded fastener adheres to Class 3A thread fit tolerances per UNC standards, with precise dimensions of 1/2"-13 thread size and 1-1/2" length. Manufacturing and material specifications meet IFI 111 SAE J429 for consistent quality and performance. The product is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to hazardous substance restrictions and environmental regulations for industrial use.