5/8"-11 x 3‑1/2" Heavy Hex Cap Screw – A307 Grade B, Coarse Thread (PT), Plain (USA)

Durable 5/8"-11 x 3‑1/2" A307 Grade B heavy hex cap screw, manufactured in the USA with a plain, uncoated steel finish for dependable strength in construction, structural, and industrial applications. Features partial coarse threading (PT) for enhanced shear strength and a heavy hex head designed to provide increased wrenching surface and improved load distribution. Ideal for demanding fastening applications requiring reliable, long‑lasting performance and consistent quality.