S-94705A782 7/8"-9 x 4 3/4" 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
- Premium Grade B7 steel construction provides superior durability and resistance to mechanical stress
- Rockwell C35 hardness rating maintains structural integrity under heavy loads and repeated use
- ASTM A193 certification guarantees compliance with rigorous industrial standards for quality and safety
- Class 2A thread fit enables smooth installation while maintaining secure fastening connections
- Coarse UNC threading facilitates quick assembly and disassembly in demanding environments
- External hex drive design allows for high-torque application with standard industrial tools
Professional Applications & Engineering Value
This high-strength Grade B7 steel hex head screw is engineered to solve critical fastening challenges in heavy-duty industrial applications where reliability is paramount. The partially threaded design with 2 1/4" thread length provides optimal grip strength while the coarse UNC threading ensures rapid installation in time-sensitive maintenance and assembly operations. The ASTM A193 certification and 125,000 PSI tensile strength make this fastener ideal for pressure vessel systems, structural connections, and machinery where failure is not an option. The external hex drive accommodates high-torque applications common in industrial maintenance, while the Rockwell C35 hardness ensures the fastener maintains its structural integrity under repeated stress cycles and vibration.
Specification Summary & Compliance
This 7/8"-9 UNC hex head screw features precise Class 2A thread fit tolerances and complies with ASTM A193 specifications for high-temperature service. The fastener meets ASTM Grade B7 requirements with verified 125,000 PSI tensile strength and Rockwell C35 hardness. Manufactured to inch system standards with coarse UNC threading and right-hand thread direction, this partially threaded fastener delivers consistent performance in industrial applications requiring reliable, high-strength connections.
