Does any one know the type and size of screws that secure the beam to the wall mount from the bottom of the mount? I just found out today (after the beam fell off the mount) that the electrician who installed the beam about 6 months ago did not secure the beam to the mount. I threw away the box many moons ago.
Best answer by Stanley_4
https://www.sonos.com/en-us/shop/beam.html
Threaded mount
1/2 in. (12.7 mm) / 10-32 threaded mounting socket.