The tiles are not mechanically fastened to the vehicle, but glued. Since the brittle tiles cannot flex with the underlying vehicle skin, they are glued to Nomex felt Strain Isolation Pads (SIPs) with RTV silicone adhesive, which are in turn glued to the orbiter skin. These isolate the tiles from the orbiter's structural deflections and expansions.[1]
Ace Hardware does not have any like this.
CA is just superglue in its chemical name. Buy it as super glue pay $5 buy it as CA and its $0.50.Ace Hardware does not have any like this.