3/4"-10 x 3‑1/4" Heavy Hex Cap Screw – A307 Grade B, Coarse Thread (PT), Plain (USA)

Robust 3/4"-10 x 3‑1/4" A307 Grade B heavy hex cap screw, manufactured in the USA with a plain, uncoated steel finish for reliable structural and industrial performance. Features partial coarse threading (PT) for enhanced shear strength and a heavy hex head that provides greater wrenching area and superior load distribution. Ideal for demanding construction, structural, and equipment‑assembly applications requiring dependable durability and consistent fastening quality.