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NAUBEA 2 Pack Door Knob Hole Cover Plate, 2 5/8" Diameter Round Deadbolt Cover Plate, Door Lock Hole Filler Plate Brushed Satin Nickel, 1" Threaded Screw, Increase Home Security on Various Doors - -
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What is this round metal plate with a flathead screw in the center? It's placed every few feet on the wall near the floor in my hotel. : r/whatisthisthing
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