I was drilling 8mm diameter holes into plasterboard to put in hollow wall anchors (<https://www.screwfix.com/p/easyfix-hollow-wall-anchors-8-16mm-m5-x-52mm-10-pack/12229>) in order to put shelves up.

[![enter image description here](https://i.stack.imgur.com/WuxJU.png)](https://i.stack.imgur.com/WuxJU.png)

However, I have accidentally drilled an 8mm diameter hole into a stud rather than the plasterboard so cannot use the hollow wall anchor, how can I use this hole, as it is too large for a screw?