LED Heatsink Hanging Dimensions

Hi all, real quick one, I'm changing my set up and it would be really useful to hang each heatsink individually using the holes/threads on the top of the heatsink. Anyone any idea what the dimensions are to screw something into this?



Only thing I can find is the driver which has hanging point; second on the right. I need that, but without a driver as they are in another room...



Appreciated.

It's usually M3 but no guarantee in your case.

looks like the pins of your heatsink are 3mm.
If your screwholes are bigger then the pins, it could be M4 or M5.