1"-8 x 4‑1/2" Heavy Hex Cap Screw – A307 Grade B, Coarse Thread (PT), Plain

Heavy‑duty 1"-8 x 4‑1/2" A307 Grade B heavy hex cap screw with a durable plain, uncoated steel finish for reliable performance in construction, structural, and industrial applications. Features partial coarse threading (PT) for increased shear strength and a heavy hex head offering greater wrenching area and superior load distribution. Ideal for high‑strength fastening jobs requiring long‑lasting durability and consistent quality.