S-94705A739 1/2"-13 x 6 1/2" 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 in high-stress applications, reducing the risk of fastener failure.
• High hardness rating of Rockwell C35 provides superior resistance to wear and deformation, extending service life in demanding environments.
• Coarse UNC threading with Class 2A fit offers quick assembly and secure fastening, minimizing installation time while maintaining precision.
• Partially threaded design allows for controlled clamping force, ideal for applications requiring specific grip length and vibration resistance.
• External hex drive and hex head facilitate easy installation and removal with standard tools, enhancing maintenance efficiency.
• Manufactured from high-grade steel and compliant with ASTM A193, ensuring consistent quality and suitability for heavy-duty industrial use.
• Generous 6 1/2" length with 1 1/2" thread provides versatility for various material thicknesses and structural requirements.

Professional Applications & Engineering Value

This ASTM Grade B7 hex head screw is engineered to address critical challenges in heavy-duty industrial applications, such as pressure vessels, valve assemblies, and structural supports. The steel construction combined with 125,000 PSI tensile strength and Rockwell C35 hardness ensures it withstands extreme mechanical stresses and environmental factors, preventing loosening under vibration. The coarse UNC thread and Class 2A fit provide reliable engagement in coarse-grained materials, reducing the risk of cross-threading and enabling faster installation. Its partially threaded configuration allows precise load distribution, making it ideal for flanges and machinery where consistent clamping force is essential for safety and longevity.

Specification Summary & Compliance

This fastener features a 1/2"-13 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy. It complies with ASTM A193 specifications for Grade B7, ensuring adherence to rigorous manufacturing standards for high-temperature and high-pressure service. The product meets common industry requirements for material integrity and performance, suitable for applications demanding reliable mechanical properties and durability.