1‑1/2"-8 x 7" 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 1‑1/2"-8 x 7" heavy hex head cap screw is designed for large‑diameter, high‑load fastening applications where corrosion resistance and structural integrity are critical. The partial‑thread (PT) design incorporates a long unthreaded shank that improves shear strength and promotes effective load transfer in heavily stressed bolted joints, making it ideal for flanged connections and thick structural assemblies. Its 7" length provides substantial grip for deep engagement, while the heavy hex head offers increased bearing surface and enhanced wrench leverage for controlled, high‑torque installation. Commonly specified for marine environments, chemical processing equipment, pressure systems, and outdoor structural installations, this fastener delivers dependable performance and long service life in corrosive and moisture‑exposed conditions.