Adding internal storage for HP workstation Z2 Mini 4G

Hello everyone, I would like to know if I can add internal storage (Seagate Barracuda 5TB) to HP workstation Z2 Mini 4G.

And if so ... do i need those special screws, which need to be ordered from HP? I have read about it in another post. Or how else can I mount it?

Thanks a lot in advance~