5/16"-18 x 2‑1/2" Hex Cap Screw – Coarse Thread (PT), A2 (18‑8) Stainless Steel (USA)

High‑quality 5/16"-18 x 2‑1/2" hex cap screw, made in the USA from durable A2 (18‑8) stainless steel for outstanding corrosion resistance and long‑lasting performance. Features partial coarse threading (PT) for enhanced shear strength and secure load engagement, along with a precision‑formed hex head that ensures strong wrenching grip and reliable fastening. Ideal for machinery, construction, marine environments, maintenance work, and industrial applications requiring rust‑resistant, high‑strength hardware with extended grip length.