S-92865A156 5/16"-18 x 3/8" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional load-bearing capability with 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through zinc plating, extending service life in harsh industrial environments
- Optimized torque transmission with external hex drive design for secure installation and easy maintenance
- Consistent thread engagement with Class 2A thread fit ensuring precise assembly and vibration resistance
- Enhanced durability from Rockwell C25 hardness, maintaining structural integrity under repeated stress
- Wide compatibility with 5/16"-18 UNC coarse threads for quick installation in various materials
- Full-threaded design providing maximum grip length and uniform stress distribution
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 5 steel hex head screws deliver critical performance where structural integrity matters most. The combination of 120,000 psi tensile strength and Rockwell C25 hardness ensures reliable fastening in machinery assembly, construction frameworks, and equipment manufacturing. The zinc plated finish provides essential corrosion protection for outdoor installations or humid environments, while the UNC coarse threads enable rapid installation in steel, aluminum, and other common industrial materials. The external hex drive design allows for high-torque application, making these fully threaded screws ideal for applications requiring consistent clamping force across the entire fastener length.
Specification Summary & Compliance
Manufactured to ASME B18.2.1 and SAE J429 specifications with Class 2A thread fit tolerance for precision assembly. The 5/16"-18 UNC coarse thread configuration ensures compatibility with standard industrial components. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making these fasteners suitable for global industrial supply chains and environmentally conscious manufacturing operations.
