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I am using 4-in blue Tapcon screws to attach 2x4s to a brick wall. The picture shows a top board where it worked just fine. I was able to drill the hole using a 3/16 in concrete bit and the screw went all the way in, holding the 2x4 tight.

I did the same with the bottom 2x4 but it will not go in more than a quarter inch into the brick. It's the same box of screws and actually I tried to use multiple ones in that bottom 2x4. It's the same brick wall. I saw other similar posts but none seem to apply to this situation. I tried a cordless drill as well as a hammer drill without the hammer option. What's the difference and why does this happen sometimes?

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    "will not go in" what won't? The drill, the screw? If you're drilling brick/concrete you want an SDS, not a domestic DIY drill.
    – Tetsujin
    May 18, 2023 at 18:40
  • Actually, you want the hammer part - masonry is what that is for. You don't want to use the hammer part when you are drilling in wood or metal. May 18, 2023 at 19:03
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    I've drilled plenty of holes in masonry with a DeWalt cordless drill on the hammer setting. SDS is certainly not required. A hole is a hole. I'm also curious about the failure mode, though. Is the screw jamming? Spinning? Stripping?
    – isherwood
    May 18, 2023 at 19:39
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    Did you blow the dust out of the hole after drilling it? (By the way, the picture didn't appear. You can Edit your question and use the "mountains" icon in the editing box to add the picture.)
    – keshlam
    May 18, 2023 at 21:45
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    Tapcons are prone to variable results. Perhaps some of the brick are harder than others? diy.stackexchange.com/a/104151/18078
    – Ecnerwal
    May 18, 2023 at 23:59

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I did find a work around at least. I can grab the end with my vice grips and get it pretty darn tight. I would post a picture but the size limit here just makes it a pain.

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    Good for you. I've broken more than a few before I stopped using them, so consider yourself fortunate that they didn't snap off.
    – Ecnerwal
    May 20, 2023 at 16:10

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