S-94705A764 3/4"-10 x 4 1/4" ASTM A193 Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• High tensile strength of 125,000 PSI ensures reliable performance under extreme loads, reducing the risk of fastener failure in critical applications.
• ASTM Grade B7 material provides excellent durability and resistance to stress, ideal for high-pressure and high-temperature environments.
• Class 2A thread fit with UNC coarse threading allows for easier, faster assembly and disassembly while maintaining precision and reducing cross-threading risks.
• Partially threaded design with a 2 1/2" grip length offers secure clamping force distribution, minimizing vibration loosening in structural connections.
• External hex drive and 1 1/4" head width enable straightforward installation using standard tools, saving time and labor in industrial settings.
• Rockwell C35 hardness enhances wear resistance and longevity, ensuring consistent performance in abrasive or corrosive conditions.
• Manufactured to ASTM A193 specifications guarantees compliance with industry standards for quality and safety in demanding engineering projects.

Professional Applications & Engineering Value

This 3/4"-10 hex head screw is engineered to address common industrial challenges, such as joint integrity under dynamic loads and harsh environments. The ASTM Grade B7 steel composition, combined with a partially threaded UNC coarse design, provides superior clamp load retention and fatigue resistance, making it ideal for heavy-duty applications like pressure vessels, construction machinery, and piping systems. The external hex drive ensures quick, tool-friendly installation, reducing downtime in maintenance or assembly lines. With a 125,000 PSI tensile strength and precise Class 2A thread fit, it delivers reliable performance where safety and precision are paramount, effectively preventing loosening and structural failures in critical connections.

Specification Summary & Compliance

This screw features a 3/4"-10 UNC coarse thread with Class 2A fit for dimensional accuracy and ease of assembly. It complies with ASTM A193 specifications for material and manufacturing standards, ensuring high-quality performance in industrial fastening. The product meets common regulatory requirements for heavy-duty applications, supporting reliability in engineering projects where adherence to recognized standards is essential.