Screw-it-Again 1/4 in. D X 2 in. L Polypropylene Hex Head Masonry Anchor 10 pk

Screw-it-Again patented masonry anchor to brick, concrete, tile and other masonry applications where a strong hold is required
Concrete and Masonry anchor
Creates strong screw thread in concrete and masonry
Tapered into sections for multiple applications.
Fits screw size #2 to #16
creates up to 167lbs tensile pull strength.
great for bathroom tile projects
Made from proprietary vinyl
Does not expand or contract