S-92316A723 1/2"-13 x 2 3/4" IFI 111, SAE J429 High-Strength Grade 8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with Grade 8 classification and 150,000 psi tensile strength for critical structural applications
• Superior corrosion resistance through black-phosphate steel coating that extends service life in harsh industrial environments
• Optimized thread engagement with UNC coarse threading and Class 2A fit ensuring reliable fastening in various materials
• Enhanced installation efficiency featuring external hex drive and flanged design for simplified assembly and increased bearing surface
• Precision-engineered partial threading providing optimal clamp force distribution while reducing weight
• Consistent performance reliability backed by Rockwell C32 hardness specification for maintained mechanical properties
• Reduced maintenance requirements through compliant surface treatment meeting RoHS 3 and REACH environmental standards

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these Grade 8 hex head screws deliver exceptional performance in heavy machinery, structural steel connections, and high-vibration environments. The black-phosphate steel construction provides superior corrosion protection while maintaining the 150,000 psi tensile strength required for critical load-bearing applications. The UNC coarse thread design ensures rapid installation and reliable performance in various materials, while the partial threading and flanged design optimize clamp force distribution and eliminate the need for separate washers. These industrial fasteners solve common engineering challenges including joint relaxation, corrosion-induced failure, and installation inefficiency in heavy-duty applications.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit tolerances with 1/2"-13 UNC coarse threading and right-hand thread direction. Complies with IFI 111 specifications where identified as SAE J429 for Grade 8 mechanical properties. Meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) standards for environmental safety. The 2 3/4" length with 1 1/4" minimum thread length and 1 5/64" flange diameter ensures consistent performance across industrial applications.