Thunder Mounts TMC-10 is our opener mount fits many that attach at the flanges. (The box covering Thunder Mounts Channels is not included or part of the kit).

Thunder Mounts Overhead Garage Track Mounts. This is a TMGTL-24

Here are Thunder Mounts after with the opener and door mounts installed.

Two set of Thunder Mounts. TMS-12 & TMGTS-12

Thunder Mounts TMS-12 mounted to a LiftMaster.

Thunder Mounts TMX-19 Assembly.

Two Sets of Thunder Mounts, TMS-12 & TMGTS-12

This is how Thunder Mounts attach above the ceiling.

Here is a Thunder Mount with a box over the channel assembly (made by the customer) to eliminate going above the ceiling and covering the channel.