My machine has been dead about 2 years. Started a spindle motor swap and got lost, and then uninterested. I am back on it now, but it seems I have misplaced the bolt that holds the R8 collet in the spindle... Could someone measure theirs and put the dimensions in this thread? Most needed are the total length under the shoulder, and the main shaft diameter. If you know the thread that would be great, but it's standard R8 collet thread, so I can figure it out.

Thanks in advance!