On November 21, 2012 at 01:41, 77W said...
Read the specs on the mounting hardware, drill holes straight without wobbling the bit and don't over-torque.
This goes for all bolts always.
And no backing out and then putting it back in again.
These are specifically made to do something to the threads and the mounted-in material (brick, etc) when being screwed in. If you take one out, throw the screw away and see if you can use a different hole, too. At least use a different hole if you tighten and the bolts spin!
