I need to attach a metal bracket to a concrete wall, Ive drilled holes
for the screws, but I dont want to depend on screw tread alone, I'd
like to fill the hole with some type of cement then put the screw in.
Don't know what type is best. Any suggestions?? Thanks
I'm assuming you didn't look at Tap-Con or Pro-Con screws.
The instructions for these screws tell you the correct sized masonry
bit to use based on the size of the screw you choose. No "cement" or
If you've already drilled a hole based on you're own judgement, then
I'd suggest a good quality 2 part epoxy (not 5-minute epoxy) with the
proper filler added to thicken it up.
For most uses you don't need any cement. You should use a system
designed for the application in question. Don't expect ordinary screws to
work, get screw/anchors designed for the material and weight you will need.
Get some of those anchors that you beat into the concrete with a hammer. I
don't know what they're called, but they have a lead body split in half, and
a nail sticking out of the top. You slide it into the hole and beat the nail
down. This spreads the lead body and anchors it firmly into the concrete.
Like the others though, I see no reason to not trust TapCons or similar
Rawl calls them Zamac Nail-Ins. Their holding strength is incredible
when they're used correctly, but the OP says he already has the holes
For that, you can go with a lag shield.
but they have a lead body
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