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

Manufactured from 316 stainless steel and produced to ASTM A193 Grade B8M, Class 1, the 3/4"-10 x 4‑1/4" heavy hex head cap screw is designed for corrosion‑resistant fastening in high‑load industrial and structural applications. The partial‑thread (PT) design incorporates a long unthreaded shank that enhances shear strength and improves load distribution across bolted joints, making it ideal for flanged connections and thick material assemblies. Its 4‑1/4" length provides added reach for deeper engagement, while the heavy hex head delivers increased bearing surface and superior wrench engagement for controlled, high‑torque installation. Commonly used in marine environments, chemical processing equipment, pressure systems, and outdoor structural installations, this fastener offers dependable performance and long service life in corrosive and moisture‑exposed conditions.