S-94705A425 3/4"-10 x 2 3/4" ASTM A193 Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 125,000 PSI tensile strength for reliable performance in high-stress applications
• Superior material durability through ASTM Grade B7 steel construction and Rockwell C35 hardness for extended service life
• Secure fastening engagement with Class 2A thread fit ensuring precise installation and vibration resistance
• Optimized torque transmission via external hex drive and 1 1/4" head width for efficient assembly with standard tools
• Versatile partial threading design combining 1 3/4" threaded section with 1" grip length for flexible joint configurations
• Industry-standard compatibility with 3/4"-10 UNC coarse threads for easy integration with existing components
• Rigorous quality assurance through ASTM A193 certification for consistent performance in demanding environments

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade B7 steel hex head screws deliver critical performance where standard fasteners fail. The ASTM A193 certified material maintains structural integrity under extreme pressure and temperature fluctuations, making them ideal for pressure vessel systems, structural steel connections, and heavy machinery assemblies. The partially threaded design with UNC coarse threads provides optimal stress distribution while allowing for precise clamp load control. With 125,000 PSI tensile strength and Rockwell C35 hardness, these external hex drive screws resist stripping and deformation during high-torque installation, ensuring reliable long-term performance in corrosive and high-vibration environments where fastener failure is not an option.

Specification Summary & Compliance

This 3/4"-10 UNC hex head screw features Class 2A thread fit per ANSI/ASME B1.1 standards, ensuring precise dimensional accuracy and interchangeability. The fastener meets ASTM A193 Grade B7 specifications for high-temperature service and maintains 125,000 PSI minimum tensile strength. Manufacturing complies with industry standards for coarse thread UNC fasteners with partial threading (1 3/4" thread length, 2 3/4" overall length). The external hex drive configuration with 1 1/4" head width provides compatibility with standard industrial tools. All materials and processes conform to relevant industrial safety and quality regulations for heavy-duty industrial fasteners.