PTZOptics HCM-1C-BK Small Pipe Ceiling Mount (Black)This HCM 1C Small Pipe Ceiling Mount from PTZOptics is compatible with most PTZOptics cameras, and it supports most small based PTZ cameras with a 1 4" 20 thread mount. It mounts on your ceiling or box using a standard 1" NPT pipe and features slots for neatly dressing cables. Please note that this mount is not compatible with the Move 4K 30X or Link 4K 30X cameras. Features Compatible with Most PTZOptics Cameras Fits Most PTZ Cameras with 1 4" 20