Bolts for safe?

[davhill]

What ho, chaps.

What is the recommended size of Rawlbolt for attaching a gun safe (with 4 holes)to a stone wall? One must keep the Purdey well stowed doncha know?

[davhill]

Drumroll said:

Two things that will help answer that one. Firstly the size of the holes in the safe the other is sort of stone.

Ta. The existing holes are big - 20mm. However, I'll be drilling new holes in the side wall. It's a Lake District building, in limestone.