I am skeptic about female threaded parts not having a metallic insert. Why are plomyCLICK threaded parts made in PPSU?
As it has already been said, PPSU threads have certain key benefits over metal threads while both share the same limitations. However, metallic inserts threaded into PPSU pieces or pieces of other plastic materials bring about still more limitations, since all the stress resulting from the union of the two threaded parts lies on the plastic base. This may end up tearing the base of the piece in the medium-to-long run. A second limitation of metallic inserts which is just as important is the different degree of thermal expansion and contraction of plastic and metal. Their different behaviour in the face of thermal oscillations might result in the dismantling of the joint. We could even affirm that it is more desirable to use a piece entirely made of metal or one entirely made of PPSU rather than a plastic piece together with a metallic insert. The decision is up to you. However, if you still prefer to use a metallic thread, we can provide you with female threads for the plomyCLICK syste
