Is it safe to use screws to mount here?

[thunderstrike]

I am thinking of screw mounting magnetic O-ring mount for iPhone here, screw down the base of the phone holder.

Just wondering how much clearance there is to use half inch screws.

 

[DirtHeadDavis]

I am thinking of screw mounting magnetic O-ring mount for iPhone here, screw down the base of the phone holder.

Just wondering how much clearance there is to use half inch screws.

There is plenty of aftermarket options that bolt into that factory bolt in the tray that look great and are super sturdy. I have one from BulletPoint and it’s been rock solid even on high speed desert runs - phone doesn’t budge.