S-92316A726 1/2"-13 x 3 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 for critical structural applications
• Superior corrosion resistance through black-phosphate steel coating extending service life in harsh environments
• Optimized torque transmission via external hex drive design ensuring secure installation and removal
• Enhanced vibration resistance with Class 2A thread fit maintaining joint integrity under dynamic loads
• Simplified alignment and distribution through integrated flange design eliminating need for separate washers
• Reliable performance verification with Grade 8 certification meeting SAE J429 standards
• Reduced cross-threading risk with UNC coarse threading enabling faster assembly in industrial settings

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this Grade 8 hex head screw delivers exceptional performance in heavy machinery, structural steel connections, and automotive assemblies. The black-phosphate steel construction provides superior corrosion protection against oils, moisture, and industrial chemicals, significantly extending service life in challenging environments. The partially threaded design with 1/2"-13 UNC coarse threading ensures optimal clamp load distribution while resisting vibration-induced loosening. The integrated flange feature eliminates the need for separate washers, streamlining installation in high-volume production environments. With 150,000 psi tensile strength and Rockwell C32 hardness, this fastener maintains structural integrity under extreme mechanical stress, making it ideal for critical bolting applications where failure is not an option.

Specification Summary & Compliance

This inch system fastener features precision Class 2A thread fit with 1/2"-13 UNC coarse threading and 3 1/2" length. Manufactured to IFI 111 specifications meeting SAE J429 standards for Grade 8 fasteners. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The external hex drive with 3/4" head width provides optimal tool engagement for reliable torque application.