S-91257A697 7/16"-14 x 10" 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
- Maximum load-bearing capability with 150,000 PSI tensile strength for critical structural applications
- Superior corrosion resistance through zinc yellow-chromate plating, extending service life in harsh environments
- Optimized thread engagement with 7/16"-14 UNC coarse threads providing faster assembly and vibration resistance
- Precision manufacturing to Class 2A thread fit ensuring consistent performance and easy installation
- Enhanced durability from Rockwell C33 hardness, maintaining integrity under heavy mechanical stress
- Reliable partial threading design allowing for controlled clamping force in demanding applications
- Industrial compliance assurance meeting ASME B18.2.1 and SAE J429 specifications for quality and safety
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value in heavy machinery, construction, and industrial equipment where failure is not an option. The zinc yellow-chromate plating provides a robust barrier against corrosion, significantly outperforming standard finishes in moist or chemically aggressive environments. The 7/16"-14 UNC coarse thread design ensures rapid installation and superior resistance to loosening under vibration, while the partial threading allows precise load distribution across connected components. Manufactured from high-grade steel with Rockwell C33 hardness, this fastener maintains dimensional stability under extreme tension, making it ideal for structural supports, heavy-duty assemblies, and equipment requiring 150,000 PSI tensile strength reliability.
Specification Summary & Compliance
This 10" hex head screw features precise Class 2A thread fit tolerance with 7/16"-14 UNC coarse threads and 1 3/8" minimum thread length. Manufactured in compliance with ASME B18.2.1 and SAE J429 specifications, ensuring consistent quality and performance in industrial applications. The inch system measurements and external hex drive design provide compatibility with standard tools and existing equipment configurations.
