Anchor for drywall + tile/grout?
Hi, I'm looking for an anchor that can be secured through drywall/grout. My home has some bathroom fixtures that were installed using the standard plastic hammer in anchors through the tiled wall at the grout seem and into the dry wall behind it. These are obviously becoming loose. I'm trying to avoid tearing out the tile and having to put in blocking.
The fixtures mount using a machined brass base that has two wood screws approx 3/4" apart from each other into the anchors.
Anyone got ideas? I've got machining (manual mill) and 3d print access if something can't be found off the shelf.