S-92620A246 9/16"-18 x 1 3/4" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 8 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 150,000 psi tensile strength for reliable performance in high-stress industrial environments
- Superior corrosion resistance thanks to zinc yellow-chromate plating that protects against rust and extends service life
- Optimized torque transmission through external hex drive design for secure installation and easy maintenance
- Precise thread engagement with Class 2A fit and UNF fine threads ensuring vibration resistance and joint integrity
- Enhanced durability from Rockwell C33 hardness and Grade 8 certification for long-term reliability
- Versatile partial threading allowing for both clamping and alignment functions in various assembly applications
- Full regulatory compliance meeting ASME, SAE, RoHS 3, and REACH standards for global industrial use
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these Grade 8 hex head screws deliver exceptional performance in heavy machinery, construction equipment, and automotive assemblies. The zinc yellow-chromate plated steel construction provides superior corrosion protection in harsh environments, while the UNF fine thread design maintains secure fastening under vibration and dynamic loads. The partial threading offers optimal grip range for both thick and thin materials, and the external hex drive ensures maximum torque application during installation. These industrial hex screws solve critical fastening challenges where failure is not an option, providing reliable connections in structural applications requiring 150,000 psi tensile strength and long-term durability.
Specification Summary & Compliance
This fastener maintains Class 2A thread fit tolerance with 9/16"-18 UNF fine thread specifications, manufactured to ASME B18.2.1 and SAE J429 standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and chemical substance restrictions are met for industrial applications worldwide.
