S-92323A591 8-32 x 3/8" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 PSI provides reliable performance in demanding applications, reducing failure risks
• Zinc-plated steel construction offers superior corrosion resistance for extended service life in harsh environments
• Rockwell C22 hardness rating ensures excellent wear resistance and maintains thread integrity under repeated use
• Flanged hex head design eliminates the need for separate washers while providing increased bearing surface
• Class 2A thread fit with UNC coarse threading enables quick assembly and secure fastening in various materials
• Fully threaded shank allows for maximum engagement depth and consistent clamping force along the entire length
• External hex drive provides positive torque transmission and prevents stripping during high-torque applications

Professional Applications & Engineering Value

These Grade 5 hex head screws deliver exceptional engineering value for industrial applications requiring reliable heavy-duty fastening. The zinc-plated steel construction combined with Rockwell C22 hardness addresses common failure points in machinery, automotive, and construction equipment where vibration and environmental exposure compromise fastener integrity. The 8-32 UNC coarse thread design ensures rapid installation in production environments while maintaining secure connections in materials ranging from steel to high-density plastics. The flanged head with serrations provides superior anti-rotation properties, making these industrial screws ideal for applications where loosening under dynamic loads is a concern. The fully threaded design maximizes thread engagement in both thick and thin materials, providing consistent clamping force across diverse assembly requirements.

Specification Summary & Compliance

This 8-32 UNC hex head screw features precise Class 2A thread fit tolerances and meets IFI 111/SAE J429 specifications for Grade 5 fasteners. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for global industrial applications. The fastener maintains dimensional accuracy with 3/8" length, 1/4" head width, and 3/8" flange diameter for consistent performance across production runs.