in an effort to redeem the home depot i must ask...does it need to be a screw or could it be a bolt???
if you go to your local HD store and look in the fastner aisle you will find threaded rod which could be made into a bolt by putting 2 nuts right next to each other on one end
the two nuts if tightened to each other will work like a lock nut and not move while the finished product will look like a 2' bolt
the threaded rod should be available in 2' lengths in diameters ranging from 3/8" - 3/4"
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