Wood Keyhole Slot Quilt Hangers

Keyhole Hangers On Sale in Ireland keyhole slot hanger A horizontal keyhole slot is a great hanging option if you want a painting, photograph, picture, or other decor to sit flat against the wall keyhole slot key- hole slot , and supported by two columns and flanged top or loop , they hangers They can be adjusted to the thickness of floor slabs No

keyhole slot bit What is the proper way to install these keyhole picture hangers? If they are surface mounted, doesn't there have to be a hole or slot for