NVMe SATA M.2 2280 PCIe SSD Standoff Mounting m2 Screws Kit for ASUS : Amazon.co.uk: Computers & Accessories
So I bought an m.2 ssd. At first I didn't find this standoff and screw but I think these are the right ones (they came in the motherboard box). The screw in
M2 Brass Hex Nut Standoff Space Pillar and PC Screw M2 SSD Mounting Kit | eBay