Conversation Between deckman and action-ant

Yikes sorry to hear that! I got those parts new directly from Astonmartinbits. They're pretty good with customer support--maybe worth snapping some photos and pinging them to see if they can do anything about it? Hope all is well with you!

Hi, I finally got around to changing my oil about a month ago, and two of the bolts you sent had rounded grooves that could not be screwed into the holes. It was OK, I reused the ones already there, I figured the rubber crush washers built in could probably be good for two uses. So far so good. Not sure how they became fouled.