How to fasten a 2x4 to a concrete floor? In this video, I drill into a concrete floor and attach Tapcon concrete screws to install a 2x4 frame. The same method can be used to attach wood to concrete block or brick walls or floors. You can fasten any kind of hardware to concrete like a shelf bracket or a brace. Milwaukee M121 hammer drill and impact driver kit: https://amzn.to/3sJQ9WG affiliate link.