S-94705A510 7/8"-9 x 3 1/2" 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 load-bearing capacity with 125,000 PSI tensile strength for demanding structural and industrial applications
- Superior corrosion resistance and durability through ASTM Grade B7 steel construction with Rockwell C35 hardness
- Reliable fastening performance with Class 2A thread fit ensuring precise installation and vibration resistance
- Optimized for heavy-duty applications featuring coarse UNC threading for faster assembly in challenging materials
- Enhanced torque transmission through external hex drive design with 1 7/16" head width for secure tightening
- Versatile partial threading providing both gripping strength and adjustment flexibility in construction assemblies
- Industry compliance assurance meeting ASTM A193 specifications for high-temperature and high-pressure service
Professional Applications & Engineering Value
Engineered for critical industrial applications, these Grade B7 steel hex head screws deliver exceptional performance in high-stress environments. The coarse UNC threading and partial threading design provide superior grip strength while accommodating thermal expansion in pressure vessels, structural steel connections, and heavy machinery. The ASTM A193 compliance ensures reliability in elevated temperature services, making these external hex drive fasteners ideal for petrochemical plants, power generation equipment, and construction projects requiring 125,000 PSI tensile strength. The Rockwell C35 hardness maintains thread integrity under repeated loading cycles, solving common failure points in heavy-duty bolting applications.
Specification Summary & Compliance
This 7/8"-9 UNC hex head screw features precision Class 2A thread fit with right-hand thread direction and 2" thread length. Manufactured to ASTM A193 specifications for high-temperature service, the fastener maintains dimensional accuracy within inch system requirements. The partially threaded design provides 1 1/2" grip length with 3 1/2" overall length, ensuring optimal clamping force distribution. Compliance with ASTM Grade B7 material standards guarantees consistent mechanical properties and performance reliability for industrial applications requiring certified components.
