7/8"-9 x 4" Heavy Hex Cap Screw – A307 Grade B, Coarse Thread (PT), Plain (USA)

Heavy‑duty 7/8"-9 x 4" A307 Grade B heavy hex cap screw, manufactured in the USA with a plain, uncoated steel finish for strong, reliable performance in structural, construction, and industrial applications. Features partial coarse threading (PT) for improved shear strength and a heavy hex head that provides increased wrenching area and superior load distribution. Ideal for demanding fastening jobs requiring dependable durability, consistent quality, and high‑strength fastening capability.