Product Overview
The 1/4" MNPT Steel Countersink Hex Plug is a heavy-duty, zinc-plated steel plug designed to seal unused ports in hydraulic manifolds, air systems, coolant passages, and general industrial piping. Featuring a countersunk internal hex (Allen) drive, this plug fits flush and installs easily in tight spaces. The zinc coating provides corrosion resistance while maintaining the strength of steel, making it suitable for demanding shop, industrial, and mobile equipment applications.
