S-92655A681 7/8"-9 x 5" ASTM A193 18-8 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh or humid industrial environments.
• High tensile strength of 75,000 psi ensures reliable load-bearing capacity and structural integrity in demanding applications.
• ASTM A193 Grade B8 certification guarantees material quality and performance consistency for critical industrial use.
• Coarse UNC threads with Class 2A fit provide faster assembly and secure fastening, reducing installation time.
• Partially threaded design with 3" grip length offers precise clamping force control and vibration resistance.
• External hex drive and hex head allow for easy installation and removal with standard tools, enhancing maintenance efficiency.
• Rockwell B96 hardness ensures durability and resistance to wear, extending service life under repetitive stress.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these 7/8"-9 UNC hex head screws address critical challenges in construction, machinery, and structural assemblies. The 18-8 Stainless Steel material provides excellent corrosion resistance, making them suitable for outdoor, chemical, or marine environments where rust prevention is essential. With a partially threaded design and 3" grip length, they deliver optimal clamping force distribution, minimizing loosening from vibrations—common in equipment like pumps, valves, and heavy frames. The coarse thread and Class 2A fit ensure quick, reliable installation, reducing labor costs and downtime. Certified to ASTM A193 Grade B8, these screws meet stringent standards for high-temperature and high-pressure scenarios, offering engineers a dependable solution for maintaining safety and performance in critical systems.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including UNC coarse threads with Class 2A thread fit for consistent accuracy. It complies with ASTM A193 Grade B8 specifications for material and manufacturing, ensuring reliability in industrial applications. The screw meets common regulatory requirements for quality and safety, though specific RoHS or REACH declarations should be verified per batch. Measurements are in the inch system, with a length of 5" and thread diameter of 0.875", supporting compatibility with standard industrial components.