noun
Meaning 1
A type of nut with bulging rubber that grips the hole when the screw is screwed in. Its principle of operation is much like that of an anchor bolt.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: nut, fastener, hardware