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

This 1"-8 x 3" full‑thread heavy hex head cap screw is manufactured from 304 stainless steel and meets ASTM A193 Grade B8, Class 1 specifications, making it well suited for heavy‑duty industrial fastening where corrosion resistance and strength are required. The full‑thread configuration provides continuous thread engagement for consistent clamping force across long grip lengths, offering flexibility in nut positioning and secure fastening in thicker assemblies. The heavy hex head delivers increased bearing surface and enhanced wrench engagement, allowing precise torque application in high‑load installations. Commonly used in piping systems, flanged joints, pressure connections, and equipment assemblies, this stainless fastener resists rust, oxidation, and environmental exposure, delivering reliable long‑term performance in indoor, outdoor, and moderately corrosive environments.