To determine the thread size of the screws you need for holding the windscreen on the window frame, you'll typically need to examine the existing screws or measure the threaded holes or access
geometry dash subzero to get more details. You can use a thread gauge or a caliper to measure the diameter and pitch of the threads. Once you have this information, you can then search for screws with the same thread size at hardware stores, automotive supply stores, or online retailers.