Thor, or should that be Zeus?

[Chaz]

I don't think you will have enough purchase with the nuts as they might pull out, also think about getting epoxy in the threads and the bolt will have to go right through the nut into some pocket or other. If you look at the chart on the http://www.ebay.co.uk/itm/ANCHORSET-...c=1&rmvSB=true

it shows how deep the hole should be for a 10mm rod

Re the colour I have to pass but you could phone Sika up and ask their techy guys.

Thanks. For my current epoxy I was drilling a 30mm hole which is a pain in the ass but allows full cover to the top and sides of the M12 nut.