S-92865A593 5/16"-18 x 2 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
- Superior load-bearing capacity with 120,000 psi tensile strength for demanding industrial applications
- Enhanced corrosion resistance through zinc plating, extending service life in harsh environments
- Reliable thread engagement with Class 2A thread fit ensuring consistent fastening performance
- Optimized torque transmission through external hex drive design for secure installation
- Excellent material durability with Rockwell C25 hardness balancing strength and ductility
- Wide compatibility with UNC coarse threading for quick assembly in various materials
- Full-threaded design providing maximum grip length and adjustment flexibility
Professional Applications & Engineering Value
This Grade 5 hex head screw delivers exceptional engineering value in heavy-duty fastening applications where vibration resistance and structural integrity are paramount. The zinc plated finish provides essential corrosion protection for machinery, construction equipment, and automotive assemblies exposed to environmental elements. The UNC coarse thread spacing ensures rapid installation and superior performance in softer materials while maintaining Class 2A thread fit precision for consistent clamping force. With fully threaded design and external hex drive, this fastener offers maximum engagement depth and reliable torque application, making it ideal for structural connections, equipment manufacturing, and maintenance operations requiring 120,000 psi tensile strength performance.
Specification Summary & Compliance
Manufactured to ASME B18.2.1 specifications meeting SAE J429 Grade 5 requirements, this hex head screw features precise Class 2A thread fit tolerances and UNC coarse thread spacing. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors. With standardized 5/16"-18 thread size and 2 1/2" length, this component delivers consistent performance in accordance with international engineering standards.
