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Removing powder coat from threads

Big Toe

ClioSport Club Member
  Clio Campus
Had a set of wheels powder coated recently. Done by someone I know for very cheap and a great finish.

However, I’ve come to for the centre caps back on and the powder coat is in the threads of the bolt that holds the cap on. It’s the larger cap that covers the whee bolts.

Any idea what I can use to get it cleaned out? Tried putting the bolt in but it’s risky using the bolts. Trying to use the key for them means it could slip or snap the key.


ClioSport Moderator
  Whichever has fuel
Don’t forget to remove the paint on the mating face for the seat of the wheel bolts.


ClioSport Club Member
Just grind a little slot along the length of the bolt threads and it'll clean the hole out nicely.