1‑1/2"-6 x 7" Stainless Steel 304 B8 Heavy Hex Head Cap Screw, Partial Thread, ASTM A193 Class 1

This 1‑1/2"-6 x 7" heavy hex head cap screw is manufactured from Type 304 stainless steel and produced to ASTM A193 Grade B8, Class 1, making it suitable for very large‑diameter, high‑load industrial and structural fastening applications where corrosion resistance is required. The partial‑thread (PT) design includes a long unthreaded shank that improves shear strength, promotes proper joint alignment, and supports effective load transfer in heavy flanged connections and thick structural assemblies. Its extended 7" length allows secure fastening through substantial material sections, while the heavy hex head provides increased bearing surface and excellent wrench engagement for controlled, high‑torque installation. Commonly used in piping systems, pressure vessels, structural steel fabrication, and heavy equipment installations, this stainless fastener delivers dependable resistance to rust, oxidation, and environmental exposure for long‑term performance in indoor, outdoor, and moderately corrosive environments.