S-92316A853 3/4"-10 x 5" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 150,000 PSI ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from the black-phosphate steel coating extends service life in harsh industrial environments.
• High hardness rating (Rockwell C32) provides excellent wear resistance and durability under heavy loads.
• Flanged head design eliminates the need for a separate washer, simplifying installation and distributing load more effectively.
• Coarse UNC threads with Class 2A fit allow for faster assembly and better performance in materials prone to stripping.
• Partial threading offers optimal grip and clamping force for applications requiring precise unthreaded shank sections.
• Compliance with industry standards (IFI 111/SAE J429) ensures consistent quality and interchangeability in professional settings.

Professional Applications & Engineering Value

This Grade 8 hex head screw is engineered for demanding industrial applications where failure is not an option. The black-phosphate steel coating provides a robust barrier against rust and corrosion, making it ideal for outdoor machinery, construction equipment, and automotive assemblies exposed to moisture and chemicals. Its 150,000 PSI tensile strength and Rockwell C32 hardness ensure it can withstand extreme vibrational loads and high tension without deforming. The coarse UNC thread and partial threading design allow for quicker installation in soft materials like aluminum or cast iron, while the flanged head increases bearing surface to prevent loosening. These features collectively solve common engineering pain points like joint integrity loss, corrosion-induced maintenance, and assembly inefficiency in heavy-duty industrial fastening.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 2A thread fit for consistent engagement and a 5" length for versatile use. It meets IFI 111/SAE J429 specifications for Grade 8 fasteners, ensuring high strength and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for industrial and international use.