5/16"-18 x 5/8" Hex Cap Screw – Coarse Thread (FT), 651 Silicon Bronze (USA, Inch)

High‑quality 5/16"-18 x 5/8" hex cap screw, manufactured in the USA from premium 651 silicon bronze for outstanding corrosion resistance, excellent strength, and long‑lasting durability. Features full coarse threading (FT) for secure, consistent thread engagement, along with a precision‑machined hex head that provides strong wrenching grip and dependable fastening. Ideal for marine environments, electrical systems, woodworking, architectural hardware, and any application requiring non‑magnetic, highly corrosion‑resistant bronze fasteners.