A metric hex plug is a precision-engineered pipe fitting designed to seal or close the end of a female metric-threaded port or pipe. It features male metric threads and a hexagonal head for easy tightening or removal with a wrench. This fitting provides a reliable, leak-resistant seal, preventing fluid or gas leakage at unused ports in piping and instrumentation systems.
Metric hex plugs are widely used in hydraulic, pneumatic, instrumentation, and fluid systems across industries such as oil and gas, chemical processing, power generation, and manufacturing. When installed with appropriate thread sealant, the metric threads create a secure seal suitable for high-pressure and demanding applications.

