S-92655A701 1"-8 x 4" 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 industrial environments.
• High tensile strength of 75,000 PSI ensures reliable performance under heavy loads and stress.
• Rockwell B96 hardness provides superior durability and resistance to wear over time.
• Coarse UNC threading allows for quicker installation and reduced cross-threading risks.
• External hex drive design offers secure, high-torque fastening with standard tools.
• Class 2A thread fit guarantees precise, consistent engagement for vibration-resistant assemblies.
• Partial threading optimizes grip length for focused clamping force in structural applications.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 1"-8 UNC hex head screw in 18-8 Stainless Steel addresses critical challenges like corrosion and mechanical stress. The coarse thread design accelerates assembly in tough materials, while the external hex drive ensures firm tool engagement for high-torque applications. With a tensile strength of 75,000 PSI and Rockwell B96 hardness, it withstands extreme pressures in construction, machinery, and chemical processing. The partially threaded configuration concentrates clamping force, reducing loosening from vibrations and enhancing joint integrity in heavy-duty fastening systems.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit for precise dimensional accuracy under the inch system, with UNC coarse threading and a 4" length. It complies with ASTM A193 Grade B8 specifications, ensuring material consistency and performance in high-temperature or corrosive environments. The 18-8 Stainless Steel composition supports RoHS and REACH directives for environmental safety, making it suitable for regulated industrial applications.