Product Overview
The 3/8" MNPT Brass Countersink Hex Plug is a durable, corrosion-resistant brass pipe plug designed to seal unused ports in hydraulic systems, air lines, coolant circuits, and general industrial plumbing. Its countersunk internal hex (Allen) drive provides a flush, low-profile installation ideal for tight spaces. Brass construction delivers excellent corrosion resistance and sealing performance in both low- and high-moisture environments.
