I purchased the similar emergency stop button from V1 had had a similar issue. If you are using this button to control 110V/Mains power, you really want the connections inside a box. For just a few dollar more than the switch you reference, you can get emergency stop buttons with an enclosure. Another solution would be to purchase an electrical box and a blank plate from the hardware store to use as a mounting solution.
My solution was to design and 3D print my own box.
I wasn’t completely happy with the result, but it worked well enough. This zip file contains the STL and the Fusion files for this box: Emergency Stop box.zip (1004.1 KB)
Longer term I went a different direction with respect to an emergency stop. I now control my router using a IOT Relay like this one, so I only need my emergency stop button to handle 12V. Given the lower voltage, you can get away with a minimal solution like this bracket:
Edit: For emergency stop, all you really want is something that is easily recognized and easy to turn off. Here is a concept (never tried) that I posted for another topic:
