5/8"-11 x 3" Heavy Hex Cap Screw – A307 Grade B, Coarse Thread (PT), Plain (USA)

High‑strength 5/8"-11 x 3" A307 Grade B heavy hex cap screw, proudly made in the USA with a plain, uncoated steel finish for dependable performance in construction, structural, and industrial applications. Features partial coarse threading (PT) for enhanced shear strength along with a heavy hex head that provides greater wrenching surface and superior load distribution. Ideal for demanding fastening applications requiring long‑lasting durability, reliability, and consistent quality.