Omega A/Senator B – C30/40SE – Screws Flywheel, procurement?

Hello guys, I’m beginning to despair, I want to screw my two-mass swing wheel on the Irm Senator C40SE again. Was removed to exchange the gasket and the pilot bearing. Now everyone says that I should definitely use new screws, as this is a swinger and not a second or even third time to be used. Only where can I get these screws, all dealers I have found say no more Available we have refunded them the money bla bla bla. Part number and co I still got from my friend. GM 90342943 Opel 616287 Can one of me help or confirm that I really need to use new ones. I would have actually only put something blue Loctite on it and back in. Torques and angles to wear should be clear by now, are the forums full with. Greeting Sebastian