Check the length by removing the one opposite as there are two sizes used, if you screw one that is too long the screen will crack !
Oh, yes. Do be careful. I had a well known windscreen supplier (UK) get this wrong, despite me warning them several times about the screw lengths.
After the screen cracked, I screamed at them for a bit, and the next time they snapped on of the bolts on the boss holding the screen upright. Then stuck it back on with silicone.
I found this out while travelling at speed and wondering why the screen was bending towards me more on one side than the other. Cue more screaming down the phone, this time at the manager, I got a full refund, and since they couldn't source the bolts, extra to pay for a boss kit.
I then had to refit everything properly.
I should have reported them to trading standards.