They have a small screw on the back so if you are installing something like the Erin Valance or the Indoor Awning Valance - something without a clearance - you could screw them right into the sheetrock and as long as you don't over twist it in it will be fine without an anchor. We have togglers and plugs if you feel you still need them. But when installing something with a projection we recommend using the post adapters so that your knob and your treatment is out away from the wall and allows the return to wrap around to the side of the post.