I use a pair of Mackie Tapco S5 monitors for my computer sound, and I think I am going to need to stand mount them in a PA set up later this year.  So I am wondering if I can screw directly into the base of the monitors, and if so, what would be the best fasteners to use?  I don't even know what they are made of, but I'm guessing MDF.  Or I could remove the drivers and use nuts and bolts right through — which sounds like the safest method.

My intention is to use light stands.  I have a couple of heavy duty stands.  I can make a bracket to go between the stand and speaker (at the Menz Shed I belong to).

Any thoughts would welcome.