S-92323A566 3/8"-16 x 3" IFI 111, SAE J429 Medium-Strength Grade 5 Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced Durability and Corrosion Resistance: Zinc-plated steel construction provides reliable protection against rust and wear, extending service life in harsh industrial environments.
• High Tensile Strength for Demanding Applications: Grade 5 classification with 110,000 psi tensile strength ensures secure fastening under heavy loads and vibrations.
• Superior Locking and Vibration Resistance: Serrated locking flange prevents loosening, maintaining joint integrity in high-stress machinery and equipment.
• Easy Installation with Coarse Threading: UNC coarse threads allow for quick assembly and disassembly, reducing labor time and improving efficiency in maintenance tasks.
• Full Thread Engagement for Maximum Grip: Fully threaded 3" length ensures consistent holding power across the entire fastener, ideal for thick materials and structural connections.
• Precision Fit and Interchangeability: Class 2A thread fit guarantees accurate mating with standard nuts, minimizing the risk of cross-threading and ensuring reliable performance.
• Compliance with Industry Standards: Meets SAE J429, RoHS 3, and REACH regulations, providing assurance of quality and environmental safety for global supply chains.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel hex head screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in demanding settings. The external hex drive and UNC coarse threading facilitate easy installation with standard tools, while the serrated locking flange enhances stability in machinery, automotive assemblies, and construction frameworks. Made from high-strength steel with a Rockwell C22 hardness, it withstands repetitive stress and extreme conditions, making it ideal for heavy-duty fastening in manufacturing, infrastructure, and equipment maintenance. Its fully threaded design ensures uniform load distribution, reducing the risk of joint failure and improving overall system reliability.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards, including Class 2A thread fit and UNC coarse thread specifications for consistent performance. It complies with IFI 111 (SAE J429) for mechanical properties, RoHS 3 (2015/863/EU) for restricted substance limits, and REACH (EC 1907/2006) for chemical safety, ensuring it meets rigorous industrial and environmental requirements.