1‑1/2"-8 x 7" Stainless Steel 304 B8 Heavy Hex Head Cap Screw, Partial Thread, ASTM A193 Class 1

This 1‑1/2"-8 x 7" heavy hex head cap screw is manufactured from 304 stainless steel and meets ASTM A193 Grade B8, Class 1 specifications, making it a reliable fastening solution for large‑diameter, high‑load industrial and structural applications requiring corrosion resistance. The partial‑thread (PT) design features a long, unthreaded shank that enhances shear strength, supports proper joint alignment, and improves load transfer in demanding bolted connections such as heavy flanges and thick structural assemblies. Its 7" length allows secure engagement through substantial material stacks, while the heavy hex head provides increased bearing surface and strong wrench engagement for controlled, high‑torque installation. Commonly used in piping systems, pressure vessels, structural steel fabrication, and heavy equipment assemblies, this fastener delivers dependable resistance to rust, oxidation, and environmental exposure for long‑term performance in indoor, outdoor, and moderately corrosive environments.