S-94239A414 1/2"-13 x 2" IFI 111 High-Strength Grade 8 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Maximum load-bearing capacity with Grade 8 strength rating and 150,000 psi tensile strength for critical heavy-duty applications
• Superior corrosion resistance through zinc-plated steel construction, extending service life in demanding environments
• Enhanced vibration resistance with serrated locking flange that prevents loosening under dynamic loads
• Precise thread engagement with Class 3A UNC coarse threads ensuring reliable fastening in various materials
• Optimal torque transmission through external hex drive design and full 3/4" head width for secure installation
• Reduced assembly time with fully threaded 2" length providing maximum thread engagement throughout
• Industry compliance assurance meeting SAE J429, IFI 111, RoHS 3, and REACH standards for quality and safety

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 8 hex head screws deliver exceptional performance where failure is not an option. The zinc-plated steel construction provides crucial corrosion protection in manufacturing, construction, and machinery environments, while the Rockwell C33 hardness ensures maintained structural integrity under extreme stress. The combination of Class 3A UNC coarse threads and serrated locking flange addresses common vibration-induced loosening issues in equipment and structural assemblies. With 150,000 psi tensile strength and fully threaded design, these external hex drive screws offer reliable fastening solutions for critical joints in heavy machinery, structural steel connections, and industrial equipment where maximum clamping force and vibration resistance are paramount.

Specification Summary & Compliance

This 1/2"-13 hex head screw features precise Class 3A thread fit with UNC coarse threading and right-hand thread direction. Manufacturing complies with IFI 111 and SAE J429 Grade 8 specifications, ensuring consistent quality and performance. The fastener meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) standards for environmental safety. Critical dimensions include 2" length, 3/4" head width, and 1 5/64" flange diameter, providing standardized compatibility across industrial applications.