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Simpson epoxy
excellent success with this system. Large Hammer drill with a concrete bit, clean out the powder, squeeze in the glue push in the 7" stud and it leaves a threadable bolt 3" to 4" from the concrete wall. Conforms to California earthquake standards for retrofitting structures so as to help insure earthquake code compliance Everything there after is attached in a normal fashion to the studded out bolts. I think when done correctly it rates a 5000 lbs of extraction energy and 7000 pounds in shear load.
Check their website for more info, decide for yourself. DW
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