antech 1100 case motherboard fan issues

[unhero]

http://imgur.com/a/U3hot

Just bought an Antech eleven hundred series case and the slots for the motherboard fan don't seem to fit the screws that came with the 120mm fan I bought. Do I need special parts?

 

[rEs0nAtE]

LOL i was dealing with this as well. You use the fat headed screws that came with the case in a separate baggy. For the front fans you use the long ones.