S-92865A742 1/2"-13 x 8 1/2" 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 capacity with 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through zinc plating protection, extending service life in harsh environments
- Optimized thread engagement with UNC coarse threading and Class 2A fit for faster assembly and secure fastening
- Enhanced durability from Rockwell C25 hardness, maintaining structural integrity under repeated stress
- Maximum driving torque capability with external hex drive design for secure installation and removal
- Full-length threading providing consistent grip strength along the entire 8½" length
- Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed quality
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 5 hex head screws deliver critical performance where structural integrity matters most. The combination of steel construction with zinc plating provides essential corrosion protection for machinery, construction, and manufacturing environments. The UNC coarse thread pattern ensures rapid installation in various materials while maintaining superior pull-out resistance. With full threading along the 8½" length and external hex drive, these fasteners offer maximum clamping force distribution and reliable torque transmission, making them ideal for structural steel connections, heavy equipment assembly, and industrial machinery where vibration resistance and long-term reliability are paramount.
Specification Summary & Compliance
This 1/2"-13 UNC hex head screw features Class 2A thread fit tolerances with coarse thread spacing and right-hand thread direction. Manufactured to ASME B18.2.1 specifications where identified by SAE J429 Grade 5 standards, ensuring dimensional accuracy and mechanical properties. Compliant with RoHS 3 (2015/863/EU) environmental regulations, guaranteeing restricted substance compliance for industrial use.
