S-94705A715 3/8"-16 x 2" ASTM A193 Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Exceptional tensile strength of 125,000 psi ensures reliable performance under extreme mechanical loads, reducing the risk of fastener failure in critical applications.
• High hardness rating (Rockwell C35) provides superior resistance to wear and deformation, extending the service life of the fastener in demanding environments.
• Coarse UNC threading with Class 2A fit allows for quicker assembly and disassembly, minimizing installation time and labor costs in industrial settings.
• Partially threaded design offers optimal grip length for secure fastening in applications where vibration resistance and joint integrity are paramount.
• ASTM A193 Grade B7 compliance guarantees material quality and manufacturing consistency, ensuring compatibility with high-pressure and high-temperature systems.
• External hex drive head enables easy installation with standard tools, improving efficiency in maintenance and assembly operations.
• Durable steel construction delivers excellent corrosion resistance and mechanical properties, suitable for long-term use in harsh industrial conditions.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade B7 steel hex head screw addresses critical challenges in high-stress environments such as pressure vessels, valve assemblies, and structural frameworks. The coarse UNC thread design ensures rapid installation even in confined spaces, while the partially threaded configuration provides enhanced clamping force where full threading isn't required. With its 125,000 psi tensile strength and Rockwell C35 hardness, this fastener maintains integrity under sustained vibration and thermal cycling, preventing loosening and joint failure. The external hex drive accommodates standard wrenching tools, streamlining maintenance procedures in petrochemical, power generation, and heavy machinery sectors where ASTM A193 compliance is mandatory for safety-critical connections.

Specification Summary & Compliance

This 3/8"-16 UNC hex head screw features precise Class 2A thread fit per ANSI/ASME B1.1 standards, ensuring proper engagement with mating components. Manufacturing follows ASTM A193 Grade B7 specifications for material composition and heat treatment, providing consistent mechanical properties including the specified tensile strength and hardness values. The fastener meets industry standards for dimensional accuracy with 1" thread length and 2" overall length in inch measurements. While designed to ASTM A193 requirements, users should verify compatibility with specific application standards including pressure equipment directives and industry-specific regulations.