There are two main fixing styles, ''Through Hole'' or ''Secret Fixing''.
As its name suggests ''Through hole'' is 2-4 No. 6mm diameter holes drilled through the stone allowing a non ferrous screw (rust proof) to be used.
''Secret fixing'' we will drill 2 holes approx 2/3rds of the way into the material, from the underside.
Allowing to stainless steel threaded dowels to be fixed. The dowels would locate into holes in your wall, a suitable adhesive would also be applied to the inside of wall holes and back of sign.
We recommend a low modulus (non leaching silicone) or ''Grip-fill'' type adhesive.
Please always remember to read the directional labels on the adhesives. It should clearly state whether it suitable for use with natural stone or not.