A cable gland is a device that allows the user to pass a cable, wire or tube into an enclosure while providing strain relief and sealing out dust, dirt, and liquids. Mencom cable glands are mainly categorized by three major mounting thread sizes: NPT, PG, and Metric. The chart below explains technical terms related to the cable glands and illustrates differences between the threads.
Source: https://www.mencom.com/news/infographic-cable-glands-threads-comparison/









