On 12/24/2013 05:30 PM, Stormin Mormon wrote:
I've been asked to anchor aluminum threshold
for commercial doors. About six inches wide, and
runs the width of two 36 inch steel doors. One
half of the threshold is loose, and needs maybe
four or so anchors.

Some how, I remember some blue anchors that look
a bit like drywall screws, but have really aggressive
threads. Anyone know what I need for the job?

Where to find these? Lowe's? Need flat head, so as
not to be a trip hazard. Can't have hex heads.





They are called "concrete screws"

I use them all the time and they are great. Most any H/W store will have
them. (They come in either flat head or hex head)


BTW: Don;t get the ones made out of concrete though (yes another one of
my stupid jokes)