Question Noctua Fans Screws

[nexuslotus]

I want to know if I can use the same screws that came with stock fans on PC cases to install Noctua fans on the same case.

I've used anti-vibration rubber that comes with Noctua fans but they were so much pain.

When I look at Noctua fans, holes don't appear to be screw friendly. Are they? or do I have to put excessive force to put screws through the holes on the fan?

 

[CountMike]

Holes in fans don't come threaded, when using them first time you have put put some more effort for screws to make threads. It's easier next time. I usually thread the screws in before putting in the case.