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 ...

Tapered thread pipe and JIC 37° flare fittings are the two most common types of fittings that generally rank poor for reusability Wouldn’t it be nice if leak-free connections could last forever? Nice, ...

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 ...