S-94705A752 5/8"-11 x 5 1/4" 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 extreme loads and prevents fastener failure in critical applications.
• Superior material durability with ASTM Grade B7 steel and Rockwell C35 hardness provides excellent resistance to wear, deformation, and stress in harsh industrial environments.
• Precision thread fit with Class 2A UNC coarse threads offers easier, faster assembly and reduced risk of cross-threading, improving installation efficiency.
• Optimized partial threading with a 1 1/2" threaded section allows for controlled clamping force and secure fastening in high-vibration settings.
• Robust hex head design with a 1 1/16" width and external drive enables high-torque application using standard tools, minimizing slippage and tool wear.
• Compliance with ASTM A193 specifications guarantees consistent quality, material integrity, and suitability for high-pressure and high-temperature applications.
• Versatile inch-sized dimensions, including a 5 1/4" overall length and 5/8"-11 UNC thread, ensure broad compatibility with existing industrial equipment and standards.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this Grade B7 steel hex head screw addresses critical challenges in high-pressure and high-temperature applications, such as pressure vessels, valve assemblies, and structural supports. The partially threaded design and coarse UNC thread provide superior grip and vibration resistance, reducing the risk of loosening under dynamic loads. Manufactured from high-strength steel with a Rockwell C35 hardness, it resists deformation and fatigue, ensuring long-term reliability. The external hex drive and precise Class 2A thread fit facilitate quick, secure installation with standard tools, minimizing downtime in maintenance and assembly operations. Compliant with ASTM A193, this fastener delivers consistent performance in corrosive or extreme environments, making it a trusted choice for engineering and construction projects.

Specification Summary & Compliance

This hex head screw features a 5/8"-11 UNC coarse thread with a Class 2A thread fit for standard tolerance and easy assembly. Key dimensions include a thread length of 1 1/2", overall length of 5 1/4", and head width of 1 1/16". It meets ASTM A193 specifications for material composition and performance, ensuring compliance with industrial standards for high-strength applications. The fastener is manufactured from ASTM Grade B7 steel, providing a tensile strength of 125,000 PSI and hardness of Rockwell C35, suitable for use in rigorous conditions without compromising integrity.