need help: screw is too short when I added the SSD Heatsink on

I'm looking at installing an NVMe into the bottom of this:

4*PCIe x4 Connectors; Advanced Thermal Design & Thermal Guard III: To Ensure VRM Power Stability & SSD Performance; EZ-Latch Plus：

m2 slot Compatible Asus13020 SSD Mounting Kit Standoff + Screws for Motherboard Screw + Screw Hex Nut Stand Off for motherboard NGFF

m2 pcie slot A hex key is required to fit these fasteners Conforming to ISO 4762 or DIN 912 BO M2 ·