Liquid Tight Threaded Hole Plugs


Heyco Products, Inc. has announced availability of their new Liquid Tight Threaded Hole Plugs with NPT, PG, and Metric Hubs. Designed specifically for hydraulic and pneumatic applications, the plugs provide a liquid-tight seal up to 70 psi, are IP 68 Rated, and feature an integral sealing ring that provides a superior seal at the mounting hole location to protect against contamination and moisture.  The plugs are constructed from electrically non-conductive Nylon 6/6, are available to fit multiple hole sizes, and have a hex shaped head with slot for wrench or screwdriver installation. The plugs are also non-corrosive (resist salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents), resist oil and heat up to 221°F (105°C), and provide a lower cost option over brass or steel  plugs. Free sample available.


  • integral sealing ring
  • non-conductive Nylon 6/6
  •  fit multiple hole sizes

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