1‑1/8"-7 x 6" Stainless Steel 304 B8 Heavy Hex Head Cap Screw, Partial Thread, ASTM A193 Class 1

This 1‑1/8"-7 x 6" heavy hex head cap screw is manufactured from 304 stainless steel and meets ASTM A193 Grade B8, Class 1 specifications, making it suitable for large‑diameter, long‑reach industrial fastening applications where corrosion resistance and structural reliability are critical. The partial‑thread (PT) configuration features an extended unthreaded shank that enhances shear strength, improves joint alignment, and supports proper load transfer in high‑stress bolted connections, especially in flanged joints and thick structural assemblies. Its 6" length allows secure fastening through substantial material stacks, while the heavy hex head provides increased bearing surface and superior wrench engagement for controlled, high‑torque installation. Commonly used in piping systems, pressure vessels, structural steel connections, and heavy equipment fabrication, this fastener delivers dependable resistance to rust, oxidation, and environmental exposure for long‑term performance in indoor, outdoor, and moderately corrosive environments.