S-92655A673 7/8"-9 x 3 1/4" ASTM A193 18-8 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications
18-8 Stainless 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
- Superior corrosion resistance provided by 18-8 Stainless Steel material, ensuring long-term reliability in harsh industrial environments.
- High tensile strength of 75,000 psi and Rockwell B96 hardness for dependable performance under extreme mechanical loads.
- External hex drive design allows for easy installation and removal with standard tools, reducing assembly time.
- Class 2A thread fit ensures consistent, reliable engagement with mating components, minimizing the risk of cross-threading.
- Coarse UNC threading provides excellent grip and vibration resistance in a wide range of materials.
- ASTM A193 Grade B8 compliance guarantees material quality and performance consistency for critical applications.
- Partially threaded shank offers optimal clamping force distribution and prevents thread damage in non-threaded sections.
Professional Applications & Engineering Value
This 7/8"-9 UNC hex head screw delivers exceptional engineering value in demanding industrial settings where corrosion resistance and high tensile strength are paramount. Manufactured from 18-8 Stainless Steel with ASTM A193 Grade B8 certification, it effectively addresses common challenges in chemical processing, marine equipment, and structural assemblies exposed to corrosive elements. The external hex drive configuration combined with coarse UNC threading ensures rapid installation and superior vibration resistance, while the partially threaded design concentrates clamping force precisely where needed. These features make it ideal for pressure vessels, pump systems, and heavy machinery where reliability under sustained mechanical stress is critical.
Specification Summary & Compliance
This fastener maintains Class 2A thread fit per UNC standards with precise dimensional control. It fully complies with ASTM A193 Grade B8 material specifications and meets industry standards for high-strength applications. The manufacturing process ensures consistent 75,000 psi tensile strength and Rockwell B96 hardness across production batches, providing reliable performance in critical engineering applications where material traceability and specification adherence are essential.
