S-94705A768 3/4"-10 x 5 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 under high-stress conditions, reducing the risk of fastener failure.
• ASTM Grade B7 material with Rockwell C35 hardness provides superior resistance to wear and deformation, extending service life in demanding environments.
• Class 2A thread fit with UNC coarse threading offers easy assembly and disassembly while maintaining secure fastening, minimizing installation time.
• Partially threaded design with 1 3/4" thread length allows for precise grip control and optimal load distribution in structural applications.
• External hex drive and 1 1/4" head width enable high-torque application with standard tools, enhancing installation efficiency.
• ASTM A193 compliance guarantees adherence to rigorous industrial standards, ensuring consistency and safety in critical assemblies.
• 5 1/2" length with 3 3/4" grip length accommodates thick materials and provides ample clamping force for heavy-duty connections.

Professional Applications & Engineering Value

Engineered for high-pressure and high-temperature environments, these 3/4"-10 UNC hex head screws address common industrial challenges such as vibration loosening and material fatigue. The ASTM A193 Grade B7 steel construction, combined with Rockwell C35 hardness, ensures resilience against corrosion and mechanical stress, making them ideal for petrochemical, power generation, and heavy machinery assemblies. The coarse thread spacing and Class 2A thread fit facilitate quick installation in rugged conditions, while the partially threaded design concentrates strength where needed most, reducing the risk of thread stripping and improving overall joint integrity. This combination of material excellence and precise engineering delivers long-term reliability in critical B2B and industrial applications.

Specification Summary & Compliance

This hex head screw adheres to Class 2A thread fit tolerances and UNC coarse thread standards, ensuring dimensional accuracy and interchangeability. Manufactured in accordance with ASTM A193 specifications for high-temperature service, it meets common industry requirements for material traceability and performance. The product conforms to relevant regulations, including RoHS and REACH for environmental safety, supporting use in global industrial supply chains.