3/4"-10 x 3‑1/2" Stainless Steel 316 B8M Heavy Hex Head Cap Screw, Partial Thread, ASTM A193 Class 1

Manufactured from 316 stainless steel and certified to ASTM A193 Grade B8M, Class 1, the 3/4"-10 x 3‑1/2" heavy hex head cap screw is designed for corrosion‑resistant fastening in high‑load industrial and structural applications. The partial‑thread (PT) configuration includes an unthreaded shank section that enhances shear strength and improves load transfer across bolted joints, making it well suited for flanged connections and thicker material assemblies. Its extended length supports secure engagement through substantial components, while the heavy hex head provides increased bearing surface and improved wrenching leverage for controlled torque application. Commonly specified for marine environments, chemical processing equipment, pressure systems, and outdoor structural installations, this fastener delivers reliable performance and long service life in corrosive and moisture‑exposed conditions.