I opened a ticket with L6 support and they provided this information regarding the case screws.
They are, in case anyone else ever needs them: M2.5 x 0.5 x 10MM PHILLIPS FLAT HEAD SCREW
I just bought a used Helix Floor and I noticed it is missing two screws on the back. Does anyone know what size they are and where I might get a couple?
https://imgur.com/TPbxD2v