Cool. I should also have said earlier -- I like pairing these with small fiber washers you can also pick up at your local home improvement store. It's like old school gasket material (that hard thin cardboard/wafer material). I like putting these washers between the bike frame and the accessory, to save the paint on the bike frame from being scratched/worn by the accessory. An OCD thing, for sure, but these things are about 60 cents for a little bag of four, so I back all of my metal accessories with them.