![]() ![]() The only potential problem with those is if you have a ton of rebar in the concrete where you are drilling and also drilling next to a concrete edge and potentially cracking out the concrete at that spot.We use them all the time when setting pumps, fans, columns. When I say post installed I am talking about threaded rod epoxied into a drilled hole in the concrete. Post installed anchors are used quite often these days for smaller structures. But of course they take some thinking and proper layout/forming to get right since they are installed when concrete is poured. I suppose in theory J-Bolts could straighten out but in light weight low rise structures highly unlikely. ![]()
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