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

This 1‑1/2"-6 x 7‑1/2" heavy hex head cap screw is manufactured from Type 304 stainless steel and meets ASTM A193 Grade B8, Class 1 specifications, making it well suited for very large‑diameter, extended‑length industrial and structural fastening applications where corrosion resistance is critical. The partial‑thread (PT) design features a long, unthreaded shank that enhances shear strength, improves joint alignment, and ensures effective load transfer in high‑stress bolted connections such as heavy flanges and thick structural assemblies. Its 7‑1/2" 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.