7/8"-9 x 2‑1/2" Stainless Steel 304 B8 Heavy Hex Head Cap Screw, Partial Thread, ASTM A193 Class 1

This 7/8"-9 x 2‑1/2" 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 industrial and structural applications where corrosion resistance and strength are required. The partial‑thread (PT) design provides an unthreaded shank that improves shear strength and joint alignment in bolted connections, particularly in flanged joints and thicker material assemblies. The heavy hex head delivers a larger bearing surface and enhanced wrench engagement, allowing for controlled torque application during installation. Commonly used in piping systems, pressure flanges, equipment assemblies, and structural steel connections, this fastener offers dependable resistance to rust, oxidation, and environmental exposure, ensuring long service life in indoor, outdoor, and moderately corrosive environments.