S-94705A419 3/4"-10 x 2 1/4" ASTM A193 Steel Heavy Hex Head Screws for High-Pressure Applications
Steel Heavy Hex Head Screws for High-Pressure Applications
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength of 125,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- High hardness rating (Rockwell C35) provides superior resistance to wear and deformation, extending service life in demanding environments.
- Fully threaded UNC coarse design allows for faster installation and stronger holding power in a wide range of materials.
- Class 2A thread fit offers optimal clearance for easy assembly while maintaining secure fastening, minimizing cross-threading risks.
- External hex drive and hex head enable high-torque application with standard tools, ensuring tight, stable connections in machinery and construction.
- ASTM A193 Grade B7 compliance guarantees material integrity and performance consistency for critical high-temperature and pressure applications.
- Right-hand coarse threading delivers efficient, vibration-resistant fastening, ideal for heavy-duty equipment and structural assemblies.
Professional Applications & Engineering Value
This Grade B7 steel hex head screw is engineered to address common industrial challenges such as vibration loosening, high-load stress, and harsh operating conditions. The fully threaded UNC coarse thread design ensures maximum grip and distribution of clamping force, making it ideal for construction, machinery fastening, and pressure vessel assemblies. With a tensile strength of 125,000 psi and Rockwell C35 hardness, it resists elongation and surface wear under extreme temperatures and mechanical loads. The external hex drive allows for precise torque control, reducing installation time and enhancing safety in industrial strength applications where reliability is critical.
Specification Summary & Compliance
This fastener meets ASTM A193 specifications for high-temperature service, with thread fit Class 2A ensuring dimensional accuracy per UNC standards. It features a 3/4"-10 UNC coarse thread, right-hand direction, and fully threaded design for consistent performance. Manufactured from Grade B7 steel, it complies with industry requirements for heavy-duty applications, supporting compliance with relevant engineering and safety standards in construction and industrial machinery.
