S-92979A122 1/4"-20 x 1" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 110,000 PSI tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh environments
• Enhanced load distribution with integrated 9/16" flange design, reducing surface pressure and preventing material damage
• Optimized installation efficiency featuring external hex drive and coarse UNC threading for quick assembly and secure fastening
• Precision thread engagement with Class 2A fit ensuring consistent performance and vibration resistance
• Industry-standard compliance meeting SAE J429 specifications for guaranteed mechanical properties and reliability
• Environmental responsibility with RoHS 3 and REACH compliance for safe use across various industrial sectors

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 5 hex head screws deliver exceptional mechanical performance where reliability is critical. The zinc-plated steel construction provides essential corrosion protection for outdoor equipment, machinery assemblies, and structural frameworks exposed to environmental elements. The combination of UNC coarse threading and fully threaded design ensures rapid installation and maximum grip length, while the integrated flange eliminates the need for separate washers, streamlining assembly processes. With Rockwell C22 hardness and precise Class 2A thread fit, these screws maintain integrity under vibration and dynamic loads, making them ideal for construction equipment, automotive components, and industrial machinery where failure is not an option.

Specification Summary & Compliance

This 1/4"-20 x 1" hex head screw features UNC coarse thread spacing with Class 2A tolerance for precise fit and reliable performance. Manufactured to IFI 111 specifications where identified as SAE J429, ensuring consistent mechanical properties and dimensional accuracy. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental standards for industrial use. The Grade 5 classification guarantees minimum tensile strength of 110,000 PSI and Rockwell C22 hardness, providing assurance for critical applications requiring verified mechanical performance.