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  • It's got a M10 plug in there at the moment, but the main problem is the brick has been filled badly with some sort of sandy shite. I get the feeling I need to dig all that out and fill it with something really solid, then drill fresh and probably use those anchor bolts.

  • I used some epoxy cement in a contractors tube to do this job. It worked very well, surprisingly well in fact.

    You could cement a bolt in cut it down and then put a nut on it as an option.

    I bought a 'pipe' brush to get the remains of dust and stuff out of the hole after drilling. Apparently it works better than hoovering. It formed a very strong bond.

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