S-92655A682 7/8"-9 x 5 1/2" 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
- Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
- Superior load-bearing capability from 75,000 psi tensile strength and Rockwell B96 hardness
- Reliable fastening performance with Class 2A thread fit ensuring precise engagement and vibration resistance
- Optimized grip strength through 3 1/2" grip length and partially threaded design for secure joint integrity
- Easy installation and removal with external hex drive and 1 7/16" head width for standard tool compatibility
- Industry-standard compatibility with UNC coarse threads and right-hand direction for widespread application use
- Long-term durability meeting ASTM A193 Grade B8 specifications for high-temperature and pressure service
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 7/8"-9 UNC hex head screws provide critical solutions where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel composition withstands corrosive environments while maintaining strength, making them ideal for chemical processing equipment, marine components, and high-temperature machinery. The partially threaded design concentrates clamping force precisely where needed, preventing joint loosening under vibration. With coarse UNC threads and external hex drive, installation efficiency is maximized in construction, heavy equipment assembly, and industrial maintenance scenarios where reliability cannot be compromised.
Specification Summary & Compliance
This heavy-duty hex head screw features precise Class 2A thread fit per UNC standards with 7/8"-9 thread size and 2" thread length. Manufactured to ASTM A193 Grade B8 specifications, it delivers consistent mechanical properties including 75,000 psi tensile strength and Rockwell B96 hardness. The fastener complies with industry standards for dimensional accuracy and material composition, ensuring reliable performance in critical applications. All manufacturing processes adhere to quality assurance protocols for inch system fasteners used in industrial and construction sectors.
