Why then ever write a review? Maybe I can give someone with a similar problem a tip:
I use a tower case from "Corsair". Its unregulated 140mm front fan I wanted to exchange, stood before the problem that none of the supplied mounting options fit easily. The original built-in fan is screwed with long, thin thread screws in through-hole mounting on the housing. Through these case side threaded holes now fit neither the thick bolts of "hard-plastic fastening", nor the push pins the "anti-vibration mounting". Thickness holes next to it there not even know what to do?
My workaround: anti-vibration rubber mounts Clip, (S) Carefully turn the housing facing away from "ear" to the side, and the original durchpfriemeln fixing screws centrally. All corners mutually bolt it to the Tower, until the desired 1mm distance from fan to Tower can be reached in about -fertig!
Vibrations I have, despite this "tinkering solution" can not determine the best of intentions.
