Threaded O-Ring Plugs are equipped with a compressing flange lip and O-ring for a watertight seal and superior leakage protection for hydraulic UNF threads. Can be applied and removed by hand, wrench, socket, or screwdriver.

Our extensive range of threaded protection plugs guard pipes, hoses, and hydraulic fittings from dirt, moisture, and damage to maintain equipment integrity. With unique patented features and quick-fit, screw on, or push on application, Essentra has the threaded plastic protection plug that is ideal for your project. We carry plugs to protect; SAE O-ring ports, hydraulic fittings, UNJ/UNJS threads, Metric threads, BSP threads, UNF threads, JIC threads, Unified Standard threads, NS & NF Class 1-2-3 threads, and NPT threads.