S-91268A867 3/4"-10 x 5" 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 applications
- Superior durability and wear resistance thanks to Grade 8 steel construction and Rockwell C33 hardness
- Optimized thread engagement with 3/4"-10 UNC coarse threads providing excellent vibration resistance and faster installation
- Precise mechanical fit ensured by Class 2A thread tolerance for consistent assembly quality
- Enhanced torque transmission through the external hex drive design and 1 1/8" head width
- Versatile partial threading allowing for both clamping and alignment functions in structural applications
- Full regulatory compliance meeting ASME B18.2.1, SAE J429, RoHS 3, and REACH standards for global industrial use
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 8 hex head screws deliver exceptional performance in construction equipment, machinery assembly, and structural steel connections. The 3/4"-10 UNC coarse thread configuration provides superior resistance to vibration loosening while enabling quicker installation compared to fine threads. The partially threaded design creates a precise shoulder that prevents component shifting under dynamic loads. With 150,000 psi tensile strength and Rockwell C33 hardness, these external hex drive fasteners maintain integrity in high-stress environments where failure is not an option. The right-hand thread direction and Class 2A thread fit ensure compatibility with standard industrial components while maintaining precise dimensional accuracy.
Specification Summary & Compliance
This 5" length hex head screw features precise Class 2A thread fit with 3/4"-10 UNC coarse threading and minimum thread length of 1 3/4". Manufactured to ASME B18.2.1 and SAE J429 Grade 8 specifications, ensuring dimensional accuracy and mechanical properties. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees safe use across global industrial markets.
