500R Top mounting 120mm BitFenix Spectre PWMs

Hi all, just about finished my initial build of new rig. Have two new Spectre PWM 120mm fans for the lid and wonder how you mount?



As the fans obviously line up with the 120mm rubber grommets in the case neither the long screws that came with the case nor the short self tapping (coarse threaded) screws that came with the fans fit :cool:



Not a fan of zip ties/tie wraps but struggling to find a suitable solution.



Thanks in advance.