Hi, I am building a Lanai screen using Aluminum frames from HD. I have been trying to use tapcons to screw in the frame into the hollow brick.
Problem is when I try to drive the tapcon into the predrilled hole it just sits there rotating and doesn't go in.
I have tried drill bits of size 5/32, 1/8 and have varied the depth to see if that makes a difference. Nothing seems to work - the screw goes in about 1/2 inch but then keeps rotating there without going in further. If I apply pressure it does go in. But it comes off easily when I tug it to see if it went in straight.
Can any experts point me in the right direction? What am I doing wrong?
By the way I was able to screw in two screws properly. But that was it. Also I am NOT using a hammer drill.
Thanks in advance for you help!