S-92979A160 1/2"-13 x 3/4" 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 provided by zinc-plated steel coating, extending service life in harsh environments
• Precision thread engagement with Class 3A fit and UNC coarse pattern ensuring secure fastening and vibration resistance
• Enhanced torque transmission through external hex drive design for easier installation and removal
• Increased bearing surface from integrated flange design distributing load more effectively
• Consistent mechanical properties with Rockwell C25 hardness maintaining dimensional stability under stress
• Full threading coverage along the 3/4" length providing maximum grip strength throughout the fastener

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 5 hex head screws deliver exceptional performance in construction, machinery assembly, and structural frameworks. The zinc-plated steel construction provides essential corrosion protection for outdoor equipment and manufacturing environments where moisture exposure is common. The UNC coarse thread pattern with Class 3A thread fit ensures rapid installation and superior resistance to vibration loosening, critical for maintaining structural integrity in dynamic load conditions. The combination of 110,000 PSI tensile strength and Rockwell C25 hardness makes these fully threaded flange screws ideal for high-stress connections where failure is not an option. The external hex drive design accommodates standard wrenching tools for efficient assembly in confined spaces.

Specification Summary & Compliance

This 1/2"-13 UNC hex head screw features precision Class 3A thread fit with coarse thread spacing for optimal performance. Manufactured to meet IFI 111 specifications where identified as SAE J429 for consistent quality and dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) environmental standards and REACH (EC 1907/2006) regulations regarding substance restrictions, ensuring safe use across various industrial sectors. The Grade 5 strength classification guarantees mechanical properties meet rigorous industry requirements for reliable performance in critical applications.