Wall Anchor – Generic term used to describe any of a large number of devices used to anchor items to a wall. Wall anchors generally function in one of three ways:
- Friction anchors – The anchor is inserted into a pre-drilled hole; a screw (which also supports the item to be secured) is then driven into the anchor causing it to expand and lock against the sides of the hole.
- Self tapping anchors – some plastic anchors utilize over sized threads to tap into in drywall and then screw in snug. A screw can then be driven into an existing hole in the center of the anchor to secure the desired item
- Toggle anchors – Consist of a screw or bolt and a toggle. The screw with attached toggle is inserted into a pre-drilled hole whereupon a toggle expands to a size larger than the hole. The screw or bolt can then be tightened pulling the toggle against the back side of the wall
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