Do I need a washer between the front rack attachment point on the frame and the bicycle rack? The bike comes with a bolt, lock washer and a washer installed because I guess it looks nicer that looking at a threaded bare hole. When I purchased the basket another washer wasn't provided so I'm assuming I don't need to go out and purchase additional washers. I want to check with you guys to make sure I am installing the washers in the correct order. I plan to install it this way: allen head bolt > lock washer > washer > backet arm > frame. Is that the correct way to attach everything?