Hi Gang, I found this site on another group I'm on and felt it might help a lot of us to understand how bolts work and give everyone some info on different grades etc. Hope it helps someone when they are bolting together that 413 or 440 or that other system on their Imperial or lesser vehicle. Site is http://home.jtan.com/~joe/KIAT/kiat_1.htm Also, does anyone out there know of a reasonable shipping co to get two parts cars from NC to NJ ? Thanks Allan R 62 Imp vert 63 Imp vert 62 4dr parts car 63 4dr parts car