S-92865A619 3/8"-16 x 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 in demanding applications, reducing the risk of fastener failure.
• Superior corrosion resistance from zinc plating extends service life and maintains integrity in harsh industrial environments.
• High hardness rating (Rockwell C25) provides excellent wear resistance, minimizing deformation under heavy loads.
• Coarse UNC threading with Class 2A fit offers quick assembly and secure fastening, reducing installation time and improving joint reliability.
• Full threading along the entire 1/2" length maximizes grip and load distribution across connected materials.
• External hex drive design allows for high torque application with standard tools, ensuring tight and consistent clamping force.
• Compliance with major industry standards including ASME B18.2.1 and SAE J429 guarantees consistent quality and interoperability.

Professional Applications & Engineering Value

This Grade 5 steel hex head screw is engineered to address critical fastening challenges in heavy-duty industrial applications. The combination of 120,000 psi tensile strength and Rockwell C25 hardness ensures it can withstand significant mechanical stress without stripping or shearing, making it ideal for machinery, structural assemblies, and equipment that experience vibration and dynamic loads. The zinc plating provides a protective barrier against oxidation and chemical exposure, prolonging fastener life in environments like manufacturing plants and outdoor installations. Its UNC coarse thread pattern and Class 2A fit facilitate rapid installation while maintaining precise alignment, reducing labor costs and enhancing operational efficiency. Fully threaded along its 1/2" length, it offers uniform clamping force, preventing joint loosening and ensuring long-term reliability in industrial fastening solutions.

Specification Summary & Compliance

This fastener features a 3/8"-16 UNC coarse thread with Class 2A fit for standard dimensional accuracy and ease of assembly. It meets ASME B18.2.1 and SAE J429 specifications, ensuring consistent manufacturing quality and performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial and commercial settings without hazardous substances.