Could someone please measure the length of the bolts for the 2-bolt coil packs and the outer diameter of the brass collar or flange or whatever it is called that goes into the head and centers the coil pack?
Accidentally bought single bolt coil packs they seem to fit fine but the bolts are 8mm so the collar is too wide to go into the existing holes

I will try to make them myself, but I haven't got the original ones as the car came with some crappy aftermarket ones.