Jul 19, 2021 · Lee Valley sells Wall Dog Screws (1), which have very nice bite in drywall and are rated at 60 lb.; they can also be used in masonry (or wood) if you drill a pilot hole. Bear Claw Screws (2) , also available from Lee Valley, have a flange below the head, making them well-suited for frames or light mirrors that you are hanging with picture wire.
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