1972nail wrote:Are they threaded all the way up or do they have a shank I wonder?
I haven't done a comprehensive search, but on the face of a quick look at the parts book, it seems to use the traditional description, i.e. "BOLT" means that it has a section of plain shank, and "SCREW" means that it is threaded all the way up. So if that's correct, there is a shank on those bolts - that would make sense for the section through the centre of the disc.