Just installed a Sonos amplifier on the underside of the table. The included screws were too long, but that's because they're meant to be screwed into a shelf or drywall, not a 1-inch thick table. I used my own screws and they are very strong. The bracket itself is metal, which was a pleasant surprise. When everything is tightened, there is no play on the bracket. I have no doubt that this thing will work perfectly if my amp is placed under the table.
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