It seems the in the build guide to Mount the PSU the guide calls for 4 x M3 12mm (Bag 9). 4 x 5mm Nylon Spacers (Bag 1). however, the M3 12mm in bag 9 will not thread into the PSU. It seems the PSU is tapped to M4 I am stealing screws and spacers from another bag. I hope this does not come back to haunt me later in the build. Please see photo and screenshot of the guide for reference.
Sorry I can't help you with this, I can't remember and I don't wanna dismount the base ever again... I just can tell you that if you have more than 10 of something you normally have some spares. Only some specific items needed one or two times are just enough...
it would certainly make sense to me that the m4 screws would be used. the PSU is heavy. I opted to take screws and nylon spacers from the "fixings fix" bag. I hope that is correct. we will see. I just wanted to post to help those others along in there adventure....
I had the same problem, I could not find the spacers for M4 screws or the M4 screws themselves! I found all I needed on the extras box I believe, keep looking you will find them. The M4 screws u need to use are actually stainless steel not black oxide if I remember right.