7/8"-9 x 3" Stainless Steel 304 B8 Heavy Hex Head Cap Screw, Partial Thread, ASTM A193 Class 1

This 7/8"-9 x 3" heavy hex head cap screw is manufactured from Type 304 stainless steel and meets ASTM A193 Grade B8, Class 1 requirements, making it a dependable choice for industrial and structural fastening where corrosion resistance and strength are critical. The partial‑thread (PT) configuration provides an unthreaded shank section that enhances shear performance and promotes proper alignment in bolted joints, particularly in flanged connections and thick material assemblies. Its 3" length allows secure fastening through substantial components, while the heavy hex head offers increased bearing surface and improved wrenching leverage for accurate torque application. Commonly used in piping systems, pressure connections, equipment mounting, and structural steel fabrication, this fastener delivers reliable resistance to rust, oxidation, and environmental exposure for long‑term service in indoor, outdoor, and moderately corrosive environments.