Parametric Homematic magnet mount

I created this thing to mount the magnet part of the Homematic HM-Sec-SC-2 window sensor to my fridge door because sometimes the door not closes correctly and I wanted to send a push message to my handy when the door is opened longer than 1 minute.

The magnet part from the HM-Sec-SC-2 is attached to the thing using M2.5 screws. Magnets are Ø8x2mm. Instead of magnets a double-sided adhesive tape should also be fine. I also added a setting for sunk screws but i haven't tested this yet.