I have a 37" screen weighing 32kg with a 60cm swingarm weighing 6kg, to mount to a wall where the inner skin is 100mm thermalite blocks, with standard plaster render. The wall is a new sound construction, & I am able to tell where the joints are so I know I can fix into the body of the blocks. What is the best way of securely fixing to this? I have been told by one person that standard coachbolts with plugs will be sufficient, whilst someone else said that only Hilti chemical bolts wuld be strong enough - apparently they do a version specifically suited to composite blocks?
The trouble is, these solutions were both provided by people who thought they should work, but haven't actually done it!