A ceiling mount is recommended for ceiling installation. There are universal models that fit most projectors.
The ceiling mounts come with screw material. The projector is mounted on the bracket and the bracket on the ceiling.
ceiling. The screw threads on the beamers are standardised. I have also had a Panasonic beamer. The bracket also
also fitted there.

According to the instructions for the Epson ceiling mount unit (ELPMB22/23), 4 (M4x12) screws are used.

Instructions are available on the Epson homepage.

Hans-Peter