Start by screwing the screw in to the motor vehicle door frame on the flat area. Ensure that you drill the opening from the frame so the screw head might pass through to the other aspect. But when it came to breaking in, which was a bad time for me; https://israelwirck.popup-blog.com/18464010/the-fact-about-can-a-bent-car-frame-be-fixed-that-no-one-is-suggesting