Expansion anchor | Article about Expansion anchor by The Free Dictionary
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Bolt that is inserted into a hole drilled into masonry or other material, with a device on the end that expands, prohibiting the bolt from being withdrawn.
An anchoring device having an expandable socket that swells as a bolt is tightened into it; used in masonry walls for attaching timber, etc.
References in periodicals archive
On the West Side, Columbia University's expansion anchors
Nylon expansion anchors
expand as the screw is tightened.
The liner was attached to the concrete kettle structure using a mechanical fastening system, which included a neoprene gasket, stainless steel flat-bar, stainless steel expansion anchors
, and a sealant caulk.