S-90393A114 1/4"-20 x 1 1/2" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with 120,000 psi tensile strength for reliable performance in demanding applications
• Superior vibration resistance through flange design and serrations that prevent loosening under dynamic loads
• Optimized installation efficiency with external hex drive and coarse UNC threads for faster assembly
• Consistent thread engagement with Class 2A fit and full threading along the 1½" length
• Enhanced durability from Rockwell C22 hardness that maintains integrity through repeated use
• Industry-standard compatibility meeting IFI 111/SAE J429 specifications for interchangeable use
• Environmental compliance assurance with RoHS 3 and REACH adherence for global manufacturing applications

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers critical engineering solutions where vibration resistance and structural integrity are paramount. The combination of 120,000 psi tensile strength and Rockwell C22 hardness ensures reliable performance in heavy machinery, construction equipment, and automotive assemblies. The flanged design with serrations provides superior locking action without requiring additional washers, while the 1/4"-20 UNC coarse threads enable rapid installation in various materials. As a fully threaded fastener with external hex drive, it offers maximum clamping force distribution and tool accessibility in confined spaces. These industrial hex screws are engineered to withstand extreme operational stresses while maintaining precise Class 2A thread fit for consistent performance across manufacturing and maintenance applications.

Specification Summary & Compliance

This 1/4"-20 hex head screw features precise Class 2A thread fit with UNC coarse threading and right-hand thread direction. Manufacturing complies with IFI 111 specifications where identified as SAE J429, ensuring dimensional accuracy and mechanical properties. The fastener maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental standards for industrial components.