S-92655A674 7/8"-9 x 3 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
- High mechanical strength delivering 75,000 psi tensile strength for demanding applications
- Reliable thread engagement with UNC coarse threads and Class 2A fit ensuring secure fastening
- Optimized load distribution through partially threaded design with 1½" grip length
- Easy installation and removal with external hex drive and 1 7/16" head width
- Consistent performance backed by ASTM A193 Grade B8 certification and Rockwell B96 hardness
- Versatile industrial application with 3½" length accommodating various material thicknesses
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these 7/8"-9 UNC hex head screws provide critical solutions where corrosion resistance and mechanical integrity are paramount. The 18-8 Stainless Steel composition offers superior protection against chemical exposure and environmental factors, while the ASTM A193 Grade B8 certification ensures material consistency and performance reliability. The partially threaded design with 2" thread length and 1½" grip length allows for precise clamp load control, making these external hex drive screws ideal for pressure vessels, structural connections, and machinery assembly where vibration resistance and long-term durability are essential. The coarse UNC threads facilitate quick installation in various materials while maintaining secure fastening integrity.
Specification Summary & Compliance
These hex head screws feature precise Class 2A thread fit tolerances with 7/8"-9 UNC coarse threading and right-hand thread direction. Manufacturing complies with ASTM A193 specifications for Grade B8 stainless steel fasteners, ensuring consistent mechanical properties including 75,000 psi tensile strength and Rockwell B96 hardness. The inch system measurements maintain dimensional accuracy with 3½" total length, 2" thread length, and 1½" grip length. These fasteners meet industry standards for heavy-duty applications requiring reliable performance in corrosive environments.
