Ah, I see. I don't have one for comparison but most OEM screws are about 10mm. You just need enough bite to hold the stand on. Since you already have longer screws that fit you could thread one in carefully until it bottoms out and make a mark on it to see how much depth you have to work with.
A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station…