Keyhole Hangers -

One way to hang your wood slice art is by using a keyhole hanger , which allows the slice to be hung flush

Hangers for Commercial Lighting Units From Electrical Merchandising Keyhole slots permit easy removal of the socket for wiring , and on the

keyhole slot plug Take a wire hanger to sneak into the soace created by the cuff and open the door is that straight flat slot That's where you just put

keyhole slot hanger Making Keyhole Hangers from Scrap Steel DIY hidden hangers for Floating Shelves