This article was updated Jan. 17, 2023. It was originally published Oct. 21, 2004. Using the correct thread is critical for proper mating and replacing hydraulic fittings. First and foremost, it is a ...

Even if you use a thread sealant, a female tapered thread fitting will not seal if it is attached to a male straight thread like a faucet or toilet connection. <P>Generally, do not mix Tapered with ...