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I'm not a fan of them. I used them when building a pool equipment box for hinges (rather large heavy doors) into brick.
I found I need to back them out a few time when "screwing them in" to clear the bore hole of debris. The ones I used were Allen key & countersunk heads so the hinges could close flush.
This is a bad thing to do with these anchors, maybe it was me or maybe it was trying to use Allen head types...I couldn't get enough torque on them to drive them home in one go.
Anyway if you drive them in/out to clear the bore they tend to strip it (the bore) out! I stripped a few bores this way which really complicated matters!
I'll stay away from them in future...or at least try to ensure they are driven straight in....if possible. Maybe the bolt hex head types are better & you can get more torque???
My 2c worth
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