S-94705A438 3/4"-10 x 4 1/2" ASTM A193 Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Exceptional Tensile Strength - Withstands up to 125,000 PSI for reliable performance in high-stress industrial applications
• Premium Grade B7 Steel Construction - Provides superior durability and resistance to deformation under heavy loads
• Rockwell C35 Hardness - Maintains structural integrity and thread form even in demanding environments
• Partially Threaded Design - Offers optimal grip length distribution for secure fastening in construction assemblies
• Class 2A Thread Fit - Ensures smooth assembly and consistent torque application with standard mating components
• External Hex Drive Configuration - Enables high-torque installation using common industrial tools
• Coarse UNC Thread Pattern - Facilitates quick assembly and disassembly while resisting vibration-induced loosening

Professional Applications & Engineering Value

This Grade B7 steel hex head screw delivers critical engineering solutions for heavy-duty industrial applications where failure is not an option. The combination of 125,000 PSI tensile strength and Rockwell C35 hardness provides exceptional resistance to mechanical stress and elongation, making it ideal for pressure vessel assemblies, structural steel connections, and high-temperature applications. The partially threaded design with precise 2 3/4" grip length ensures optimal clamp load distribution, while the coarse UNC thread pattern maintains secure fastening even under significant vibration. Engineered to meet ASTM A193 specifications, this external hex drive fastener offers reliable performance in critical infrastructure, manufacturing equipment, and construction projects where structural integrity is paramount.

Specification Summary & Compliance

This 3/4"-10 UNC hex head screw features precision Class 2A thread fit tolerances for consistent mating with standard components. Manufactured from ASTM Grade B7 steel with Rockwell C35 hardness certification, the fastener complies with ASTM A193 specifications for high-temperature service. The coarse thread spacing and partial threading design ensure reliable performance in industrial applications requiring 125,000 PSI tensile strength. The external hex drive configuration supports standard industrial tooling for efficient installation across various heavy-duty applications.