well after u drill the holes i'd just put a bit of paint on the bare metal, and try 2 get the swarf hoovered out too


maybe worth a bit of that rust eather stuff, worked well on my mums 2i filler cap for a few years


a clinchnut (prob not the right name) is a brass thread thats knerled round the outside so it holds into the metal (forced in a bit too so its tight) and provides the thread to screw into

like how frst opening rears are fitted

ford use stainless (i'd hope) clinch nuts when fitting the spoilers as std so its nowt specialist, just a good way of getting a nice thread into a thin panel., could just nut n bolt in and hope for the best