Rubber mountings their alterations and installation ...

Of coarse these mountings come only with a short thread and also with an English thread which is not the same as the metric normal thread which we find bolts and nuts in a hardware store but in a way it worked out in my favor.

I had to cut each end of the bolt attached to the mounting leaving only enough to screw on a metric nut, being a different thread not only it screwed on but it was solid tied.

Then I cut the threaded stud to the size needed and screwed it on the the nuts, on the other end I used a Raw Bolt to fix to the stone wall, {as shown in figures below}

























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