Wall plug

Common card · No. 459674

A wall plug (UK English) also known as an anchor (US) or rawlplug (UK), is a fibre or plastic (originally wood) insert used to enable the attachment of a screw in a material that is porous or brittle, or that would otherwise not support the weight of the object attached with the screw. It is a type of anchor that can be used to allow screws to be fitted into masonry walls. In US English, mentions of drywall anchors are sometimes meant (and taken) to refer specifically to the type of plastic wall plugs with expandable wings for hollow walls, in contradistinction with mollies and toggle bolts. There are many forms of wall plug, but the most common principle is to use a tapered tube of soft material, such as plastic. This is inserted loosely into a drilled hole, then a screw is tightened into the centre. As the screw enters the plug, the soft material of the plug expands conforming tightly to the wall material. Such anchors can aid in the attachment of one object to another in situations where...

Read on Wikipedia · Image Rawlplug/Joanna Korzeniewska-Wieczorek, CC BY-SA 4.0