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
Amazon.com: PCIe NVMe M.2 SSD Mounting Screws Kit for Asus Gigabyte ASRock Msi Motherboards, 30pcs : Electronics
M2 SSD Screw for .2 SSD Mounting Screws for Laptop Desktop for MSI Gigabyte NGFF Motherboard 2280 - AliExpress
Amazon.co.jp: M.2 Nvme SSD Mounting Screw Kit for Asus Motherboard (M.2 SSD Screw) : Computers
Amazon.com: M.2 Screw Standoff,HFEIX SSD Mounting Kit with Screwdriver for Msi Motherboard or Gigabyte Board NVMe PCIe Driver Laptop Replace(9set) : Electronics
M.2 Nvme SSD Mounting Screw Kit for Asus Motherboard (M.2 SSD Screw) : Computers - Amazon.co.jp
Motherboard didn't come with screws for an m.2 drive, used the other m.2 slots standoff instead : r/pcmasterrace
Amazon.com: M.2 SSD mounting Screw kit for ASUS Motherboards : Electronics
Amazon.co.jp: M.2 Nvme SSD Mounting Screw Kit for Asus Motherboard (M.2 SSD Screw) : Computers
Amazon.co.jp: Screws Standoffs Set Kit and M.2 Standoff and Screw for M.2 Drives for Computer Case SSD Motherboard Fan Power Graphics : Industrial & Scientific
Asus is killing off tiny easy-to-lose M.2 screws with this handy Q-Latch - The Verge
ZRM&E 2 Sets M.2 SSD Screw Kit for M.2 Drives General M.2 Support Motherboard Mounting Accessories Screw + Hex Standoff Spacer+ Screwdriver : Amazon.ca: Electronics