Walls – Towel hook in bathroom ceramic tile grout

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I few years ago I installed tile on the wall of my bathroom. I needed a little hook for a hand towel in the tile, so I drilled two little holes into the grout in between two tiles and screwed the hook to there. Just recently, the screws just slid right out. How can I screw the hook back in? Could I just use bigger screws? Or could I get some sort of glue substance, and put it in there and then slide the screws back in and let it set? What do you recommend? Here's a photo:

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Best Answer

I see two ways to go about fixing this:

1: fill and grout the existing holes. Then buy a tile drill bit and 2 tile anchors and re-install in the middle of a tile.

2: get the cheap plastic anchors and epoxy them into the existing holes. The disadvantage of this is that the area between the two holes will flex slightly and eventually the grout will break down, compromising the mechanical retention of the anchors.