S-92620A780 9/16"-18 x 1 1/2" 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 a 150,000 psi tensile strength, ideal for high-stress industrial applications.
- Superior corrosion resistance from the zinc yellow-chromate plating, extending service life in harsh environments.
- Precise and reliable fastening ensured by the Class 2A thread fit and fully threaded 9/16"-18 UNF fine thread design.
- High durability and wear resistance due to the Rockwell C33 hardness and Grade 8 steel construction.
- Easy installation and removal with the external hex drive and standard 13/16" head width for common tools.
- Compliance with major industrial standards including ASME B18.2.1 and SAE J429, ensuring consistent quality and performance.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where failure is not an option. The high-strength steel and fully threaded UNF fine thread provide superior vibration resistance and clamping force, preventing loosening under dynamic loads. The zinc yellow-chromate plating offers a robust barrier against corrosion, making it suitable for outdoor or chemically exposed environments. By integrating precise Class 2A thread fit and standardized dimensions, it ensures compatibility and reduces installation errors, enhancing overall project efficiency and safety in industrial fastening applications.
Specification Summary & Compliance
This fastener features a 9/16"-18 UNF fine thread with Class 2A fit for precise tolerance, and is fully threaded with a right-hand direction. It meets ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial uses.
