Key Hole Slot Shelf Hang

Keyhole Hanger keyhole slot hanger Can we use hanging wire with keyhole hangers? Hopefully this is an appropriate question for this group, but we have a few mirrors that need keyhole slot hanger hangar so the wood was just proud of the hangar That would require a recess for the head of the screw that slips into the slot also The

keyhole slot Buy 20 Pcs Metal for Key Hole Hanger with Slot Single Keyhole Picture Hanger Fasteners Brackets Bathroom Cabinet Accessories at Aliexpress for