S-92865A255 3/8"-16 x 4 3/4" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced load-bearing capacity with Grade 5 classification providing 120,000 PSI tensile strength for demanding industrial applications
• Superior corrosion resistance through zinc plating that extends service life in harsh environments
• Optimized thread engagement with UNC coarse threading ensuring faster assembly and reduced cross-threading risks
• Reliable mechanical performance backed by Rockwell C25 hardness for consistent durability under stress
• Secure fastening applications through partial threading design that provides both gripping strength and clearance
• Industry-standard compatibility with Class 2A thread fit ensuring precise interchangeability with mating components
• Efficient installation and removal using standard external hex drive for common tool compatibility

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers exceptional engineering value for heavy-duty industrial applications where reliability is paramount. The partially threaded design combines the benefits of maximum thread engagement in critical sections with smooth shank areas for clearance, making it ideal for machinery assembly, structural frameworks, and equipment manufacturing. The zinc plated steel construction provides essential corrosion protection in demanding environments while maintaining the 120,000 PSI tensile strength required for high-stress applications. With UNC coarse threading and external hex drive, these fasteners enable rapid installation and removal, reducing labor time while ensuring secure connections in automotive, construction, and manufacturing sectors where vibration resistance and long-term performance are critical requirements.

Specification Summary & Compliance

This 3/8"-16 hex head screw features precise Class 2A thread fit tolerances and UNC coarse threading per industry standards. Manufactured to meet ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications while maintaining the required Grade 5 strength classification and material properties.