Securing a Solid Fuel Stove within a boat

[VALCON]

- I'm looking to secure my Solid fuel stove to the Hearth i have within my Narrowboat.
- Need to find a bolt/screw/anchor bolt to do the job.
- The Hearth consists of:
10mm ceramic tile.
layers of Knauf Aquapanel cement board 12.5mm thick per board.
bottom layer is 18mm plywood.
I am considering using Spit anchorbolts...
the holes in the feet of the stove are 6mm diameter.

Anyone any ideas?