What is the T5 torx screw size on Zenbook Prime cases?

If I want to find replacement screws for the UX32VD or UX31A, what size should I be looking at? I understand replacements won't need to use an annoying Torx head, but it would be incredibly helpful to know the precise size of replacement I need. Asus won't ship hardware to customers, meaning the only other recourse is shipping the entire laptop off to them!