S-92323A552 3/8"-16 x 3/4" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel coating, extending service life in demanding industrial environments
• Superior load-bearing capacity with Grade 5 strength rating and 110,000 psi tensile strength for heavy-duty applications
• Secure anti-loosening performance through serrated locking flange design that maintains clamp force under vibration
• Efficient installation with external hex drive and coarse UNC threads that reduce assembly time
• Precise thread engagement with Class 2A thread fit ensuring consistent performance and reliability
• Optimized hardness at Rockwell C22 providing excellent durability without brittleness
• Regulatory compliance meeting SAE J429, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers exceptional engineering value for industrial assembly applications where vibration resistance and structural integrity are critical. The zinc-plated steel construction provides reliable corrosion protection in manufacturing environments, while the serrated flange design eliminates the need for separate washers and prevents loosening under dynamic loads. The coarse UNC thread pattern ensures quick installation in structural steel, machinery, and equipment assembly, with the external hex drive accommodating high-torque applications. With full threading along the 3/4" length, this fastener maintains consistent clamping force across the entire engagement area, making it ideal for heavy-duty industrial fastening where reliability cannot be compromised.

Specification Summary & Compliance

This fastener features precision Class 2A thread fit according to UNC standards with right-hand threading direction. Manufacturing specifications comply with IFI 111/SAE J429 requirements for Grade 5 fasteners. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations regarding chemical substances. The flange diameter measures 13/16" with a head width of 9/16" for optimal load distribution.