S-92865A734 1/2"-13 x 5 1/2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance under heavy loads, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from the zinc plating extends service life and maintains integrity in harsh or outdoor environments.
• High hardness rating (Rockwell C25) provides excellent wear resistance and durability, minimizing damage during installation and use.
• Coarse UNC thread design offers faster installation and superior holding power in a wide range of materials, improving assembly efficiency.
• Full threading along the 5 1/2" length allows for maximum adjustability and secure fastening across the entire shank.
• External hex drive and hex head enable easy installation with common tools, ensuring tight torque application and reducing slippage.
• Compliance with industry standards including ASME B18.2.1 and SAE J429 guarantees consistent quality and interoperability in professional settings.

Professional Applications & Engineering Value

This Grade 5 hex head screw is engineered to address critical challenges in heavy-duty industrial and construction applications. The zinc plated steel construction combats corrosion, making it ideal for outdoor structures, machinery, and equipment exposed to moisture. The 1/2"-13 UNC coarse thread and fully threaded design provide exceptional grip and vibration resistance, preventing loosening in dynamic environments. With a high tensile strength of 120,000 psi and Rockwell C25 hardness, it withstands extreme stress and repetitive loads, reducing maintenance needs and downtime. These features make it a reliable choice for securing structural components, industrial assemblies, and automotive parts where durability and performance are paramount.

Specification Summary & Compliance

This fastener features precise Class 2A thread fit and adheres to UNC thread standards for consistent engagement. It meets ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and mechanical properties. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, supporting environmental and safety regulations in global supply chains.