1971 V12 Brake Disc Bolts

Hi I am planning to change from pressed spoke hubs to splined hubs on my V12 E Type. The manual lists a different part number for bolts for the pressed hubs (C13564) and the splined hubs (C32533).

Does anyone know if these are actually different bolts? If not it’s probably not worth discovering the answer by mistake and I’ll just buy another set. Thanks!