S-92655A676 7/8"-9 x 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
- Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
- High tensile strength of 75,000 psi ensures reliable performance under heavy loads and stress.
- Class 2A thread fit provides consistent, easy assembly while maintaining secure fastening.
- Coarse UNC threading offers superior grip and faster installation in various materials.
- Partially threaded design allows for precise clamping force control in specific applications.
- External hex drive enables high-torque installation with standard tools, reducing assembly time.
- ASTM A193 Grade B8 compliance guarantees material integrity and performance for high-temperature and pressure uses.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 7/8"-9 UNC hex head screws in 18-8 Stainless Steel address critical challenges like corrosion, vibration loosening, and high-stress fatigue. The coarse thread and Class 2A fit ensure quick, secure fastening in construction, machinery, and petrochemical equipment, reducing maintenance needs. With partial threading, they provide optimal grip length for flanges and structural joints, while the external hex drive supports efficient installation in confined spaces. Compliant with ASTM A193 Grade B8, they deliver reliable performance in elevated temperature applications, minimizing downtime and enhancing operational safety.
Specification Summary & Compliance
This screw features a 7/8"-9 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy, ensuring compatibility with standard nuts and tapped holes. Manufactured to meet ASTM A193 Grade B8 specifications, it includes a tensile strength of 75,000 psi and Rockwell B96 hardness. The inch system measurements and right-hand thread direction adhere to industry norms, with compliance to relevant standards for quality and safety in industrial fastening applications.
