My apologies, but failed to mention flwg details.
(1) Toilet bowl has two mounting holes, one on each side of base for mounting on floor tiles.
(2) However bowls rear outlet discharges through wall.

My problem is securing bowl firmly to floor tile, particularly as there are only two mounting holes as stated above, and whether to use (a)screws with plastic fasteners, (b) bolts set in the tiles, or either of the above together with some sort of adhesive or cement.
Thanks
Norbert

Nobbie, go back and attach this new post to your original post so folks can see the entire story. This post, in isolation will not mean much to a new reader.

Nobbie.. I left the answer to your question back at the original post as suggested by Ballengerb1... others follow these questions later on so it is always nice to complete each thread or question. Hope it is helpful.. *smile*.