security, safety, screw size for video doorbell (2020, 2nd generation)

Hi, I wanted to get some replacement security screws for video doorbell 2020, 2nd generation model. The one without the removeable battery that records in 1080p. I asked ring help about this and they kindly sent the screws (along with a screwdriver, nice touch). Unfortunately, when I looked at the screws they were the wrong ones! The ones they sent and mine are both torx screws (with a little hold in the hole in the top). But at the bottom there is a thread and then a smooth part. The smooth part on the ones they sent were smaller than (not as long as) the ones with the doorbell. It is not a huge difference but it is noticeable. I am wondering if it is safe to use. I also don't know which doorbell these screws belong to but I think it is really silly to have different doorbells have different size security screws, especially if the doorbells are the same size (ie video doorbell (1st and 2nd generation) and the video doorbell 2 and 3). Thanks, Yasmine