Hmmm. I believe when I was bleeding my brakes I got some fluid coming out through the threads and did not think anything of it. It makes sense to me that some fluid would come through as there is a gap once you loosen the bleeder screw. I wiped everything off as I moved from wheel to wheel.

If you are concerned, take another look after you have bled all four wheels and see if there is any fluid after you press on the brake pedal real hard, and after you have wiped everything down with brake cleaner.

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