3/4"-10 x 3‑1/4" Stainless Steel 316 B8M Heavy Hex Head Cap Screw, Partial Thread, ASTM A193 Class 1

Manufactured from 316 stainless steel and meeting ASTM A193 Grade B8M, Class 1 specifications, the 3/4"-10 x 3‑1/4" heavy hex head cap screw is engineered for corrosion‑resistant fastening in high‑stress industrial and structural applications. The partial‑thread (PT) design incorporates an unthreaded shank section that improves shear strength and promotes effective load transfer in bolted joints, making it especially suitable for flanged connections and thicker material assemblies. Its extended length allows secure engagement through substantial components, while the heavy hex head provides increased bearing surface and enhanced wrenching leverage for precise torque control during installation. Commonly used in marine environments, chemical processing equipment, pressure systems, and outdoor structural assemblies, this fastener delivers dependable performance and long service life in corrosive and moisture‑exposed conditions.