S-94705A763 3/4"-10 x 3 3/4" 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 high-stress conditions, reducing the risk of fastener failure in critical applications.
• Superior hardness rating of Rockwell C35 provides excellent resistance to wear and deformation, extending service life in demanding industrial environments.
• Coarse UNC threading with Class 2A fit offers quick assembly and secure fastening, minimizing cross-threading risks and improving installation efficiency.
• Partially threaded design allows for precise clamping force distribution, ideal for applications where vibration resistance and joint integrity are paramount.
• External hex drive and hex head enable easy installation with standard tools, reducing assembly time and labor costs in maintenance and construction projects.
• ASTM A193 Grade B7 compliance guarantees material quality and performance consistency, meeting rigorous industry standards for high-temperature and high-pressure services.
• Durable steel construction ensures long-term corrosion resistance and structural reliability, suitable for heavy-duty machinery and infrastructure applications.

Professional Applications & Engineering Value

Engineered for high-stress industrial applications, this Grade B7 steel hex head screw addresses common challenges like joint loosening and material fatigue. Its coarse UNC thread and Class 2A fit provide superior grip in soft or uneven materials, while the partially threaded shank concentrates clamping force precisely where needed—ideal for pressure vessels, valve assemblies, and structural supports. The external hex drive facilitates quick installation with standard wrenches, reducing downtime in maintenance operations. Made from ASTM A193 compliant steel, it ensures consistent performance in environments requiring high tensile strength and thermal stability, making it a reliable choice for oil and gas, power generation, and heavy machinery sectors.

Specification Summary & Compliance

This screw adheres to inch system measurements with a 3/4"-10 UNC coarse thread and Class 2A thread fit for precise dimensional accuracy. It meets ASTM A193 specifications for material composition and mechanical properties, ensuring compliance with industrial standards for high-strength fasteners. The product is manufactured to deliver reliable performance in applications requiring 125,000 psi tensile strength and Rockwell C35 hardness, with no specified RoHS or REACH exemptions noted in the provided data.