S-92323A516 1/4"-20 x 3/4" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced load distribution with integrated flange design to prevent loosening under vibration and reduce surface pressure
• Superior corrosion resistance through zinc-plated steel construction for extended service life in harsh industrial environments
• High-strength performance with Grade 5 classification providing 110,000 psi tensile strength for demanding applications
• Quick installation with external hex drive and coarse UNC threads enabling faster assembly in production settings
• Precise thread engagement with Class 2A thread fit ensuring consistent performance and reliable fastening
• Durable material properties featuring Rockwell C22 hardness for excellent wear resistance and repeated use capability
• Full threading coverage along the entire 3/4" length for maximum grip and holding power in various material thicknesses

Professional Applications & Engineering Value

These Grade 5 zinc-plated steel hex head screws with flange design address critical industrial fastening challenges where vibration resistance and load distribution are paramount. The UNC coarse thread configuration combined with external hex drive enables rapid installation in assembly line environments while maintaining 110,000 psi tensile strength for structural applications. The integrated flange eliminates the need for separate washers, reducing component count and assembly time in heavy-duty equipment manufacturing, automotive assemblies, and industrial machinery. The zinc plating provides essential corrosion protection for applications exposed to moisture or outdoor conditions, while the Rockwell C22 hardness ensures the screw maintains its structural integrity through multiple installation cycles.

Specification Summary & Compliance

This 1/4"-20 x 3/4" hex head screw features Class 2A thread fit per UNC standards with fully threaded design and coarse thread spacing for optimal performance. Manufactured to meet IFI 111 specifications where identified as SAE J429 for Grade 5 mechanical properties. Compliance includes RoHS 3 (2015/863/EU) for restricted hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility in industrial supply chains.