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
Q PCIe NVMe M.2 2280 SSD Mounting Screws Screwdriver Kit Personal Digital Assistant / Handheld PCs Accessories - Newegg.ca
M.2 Screw Kit NVMe Screw m.2 SSD Mounting Kit m.2 ssd screw M.2 for Asus motherboard
4 X M.2 NVMe LAPTOP SCREWS M2 X 3mm SSD Mounting, for Samsung Crucial GIGABYTE | eBay