S-90002A131 5/8"-11 x 2" ASME B18.2.1, SAE J429 High-Strength Steel Hex Head Screws with Material Certification
High-Strength Steel Hex Head Screws with Material Certification
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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 150,000 psi tensile strength for critical structural applications
- Superior corrosion resistance provided by zinc yellow-chromate plating in harsh industrial environments
- Optimized torque transmission through external hex drive design for secure installation
- Reliable thread engagement with UNC coarse threading and Class 2A fit for vibration resistance
- Maximum thread coverage through full threading along the 2" length for enhanced grip
- Certified industrial performance meeting ASME B18.2.1 and SAE J429 specifications
- Enhanced durability with Rockwell C33 hardness maintaining integrity under heavy loads
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these Grade 8 hex head screws deliver critical performance where failure is not an option. The steel construction combined with zinc yellow-chromate plating provides exceptional protection against corrosion in manufacturing plants, construction sites, and heavy machinery. The UNC coarse thread pattern with Class 2A fit ensures rapid installation and maintains clamping force in high-vibration environments. With fully threaded design and external hex drive, these fasteners offer maximum engagement and straightforward installation using standard tools, reducing assembly time while providing the 150,000 psi tensile strength required for structural connections and heavy equipment maintenance.
Specification Summary & Compliance
This 5/8"-11 hex head screw features precise Class 2A thread fit tolerance with UNC coarse threading and right-hand thread direction. Manufactured to exacting inch system dimensions with 2" length, 15/16" head width, and 25/64" head height. The fastener complies with ASME B18.2.1 and SAE J429 specifications, ensuring consistent quality and performance in industrial applications. Grade 8 strength classification with Rockwell C33 hardness provides reliable mechanical properties for heavy-duty fastening requirements.
