I have two of the brass insert anchors (that hold my safety cover in place) that have come lose. You can actually remove them out of the concrete.

The anchors were set in the concrete two seasons ago and with a hole drilled into the concrete and the anchors installed (they are knurled and they pressed into the hole).

As mentioned two of them have come out and I'm not sure what the proper method to re-install them. Is there an epoxy that should go in place or a larger anchor pressed into the existing hole?

Any thoughts?