7/8"-9 x 3‑1/2" Heavy Hex Cap Screw – A307 Grade B, Coarse Thread (PT), Plain (USA)

Heavy‑duty 7/8"-9 x 3‑1/2" A307 Grade B heavy hex cap screw, proudly manufactured in the USA with a plain, uncoated steel finish for dependable performance in construction, industrial, and structural applications. Features partial coarse threading (PT) for enhanced shear strength, along with a heavy hex head designed to provide greater wrenching area, improved load distribution, and secure tightening under demanding conditions. Ideal for projects requiring reliable durability, consistent quality, and high‑strength fastening capability.