S-92620A839 3/4"-10 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 150,000 psi tensile strength for demanding industrial applications
- Superior corrosion resistance provided by zinc yellow-chromate plating for extended service life in harsh environments
- Reliable mechanical performance ensured by Grade 8 steel construction and Rockwell C33 hardness
- Easy installation and removal with external hex drive design and standard 1 1/8" head width
- Secure fastening engagement through UNC coarse threading and Class 2A thread fit for consistent performance
- Full-length threading capability allowing complete engagement along the entire 1½" length
- Compliance with industry standards including ASME B18.2.1 and SAE J429 for quality assurance
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value in heavy-duty industrial applications where failure is not an option. The combination of 150,000 psi tensile strength and Rockwell C33 hardness provides critical resistance against shear forces and vibration-induced loosening in machinery, structural steel connections, and heavy equipment assembly. The zinc yellow-chromate plating offers superior protection against corrosion in challenging environments, while the UNC coarse thread design ensures rapid installation and reliable performance in various materials. The external hex drive configuration allows for high torque application, making these fully threaded screws ideal for critical connections requiring maximum clamping force and durability in construction, manufacturing, and automotive applications.
Specification Summary & Compliance
This heavy-duty hex head screw features precise Class 2A thread fit with 3/4"-10 UNC coarse threading and right-hand thread direction. Manufactured to exacting ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and performance reliability. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring adherence to strict environmental and safety standards.
