They do fit on my existing ones, but strangely enough https://www.bunnings.com.au/flexi-storage-home-solutions-white-hanging-rod-bracket-2-pack-white_ ...

Thanks for the response. Just to make sure we're on the same page, as you've circled the bottom of the brackets, I am wondering if the Home Solution ...

Perhaps drill bit is not the right word; is it a socket? The bit that holds the tek screws in the drill.

Thanks Eric. Which drill bit do I need to drill in tek screws?