S-92620A765 9/16"-12 x 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
- Maximum load-bearing capacity with 150,000 PSI tensile strength for critical structural applications
- Superior corrosion protection through zinc yellow-chromate plating that withstands harsh industrial environments
- Enhanced durability with Rockwell C33 hardness that maintains integrity under repeated stress
- Reliable thread engagement with Class 2A fit UNC coarse threads for faster assembly and vibration resistance
- Optimal torque transfer through external hex drive design that prevents tool slippage during installation
- Full-threaded design ensures maximum grip length and uniform stress distribution along the entire fastener
- Heavy-duty certification meeting Grade 8 standards for the most demanding mechanical applications
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 8 hex head screws provide exceptional mechanical properties where failure is not an option. The 9/16"-12 UNC coarse thread configuration delivers superior holding power in steel structures, machinery assembly, and construction equipment. The zinc yellow-chromate plating creates a protective barrier against corrosion in outdoor or chemically aggressive environments, significantly extending service life. With fully threaded right-hand design and external hex drive, these fasteners enable efficient installation in confined spaces while maintaining consistent clamping force. The combination of 150,000 PSI tensile strength and Rockwell C33 hardness ensures these screws withstand extreme vibration, shock loads, and thermal cycling without compromising joint integrity.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with 9/16"-12 UNC coarse thread specifications. Complies with ASME B18.2.1 dimensional standards and SAE J429 Grade 8 mechanical requirements. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) standards for hazardous substances. The 2" length and fully threaded design ensure consistent performance across various material thicknesses and applications.
