expansion bolt

(redirected from expansion bolts)
Also found in: Dictionary, Thesaurus.

expansion bolt

[ik′span·shən ‚bōlt]
(design engineering)
A bolt having an end which, when embedded into masonry or concrete, expands under a pull on the bolt, thereby providing anchorage.

expansion bolt

expansion bolts
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 ?
7 CY concrete box culverts; 18 SF structural repair of concrete (depth greater than 5"); 88 expansion bolts.
Using the longer nails, anchor the two back wall supports to studs (if the small end supports don't span two studs, you may need expansion bolts to secure them).
Tenders are invited for Annual contract for fixing expansion bolts, strenghening and special repairs to various structure and machine foundation at CSTPS, Chandrapur
Woodscrews attach the central piece to a wall stud; expansion bolts secure branches to the gypsum board wall.
Tenders are invited for Annual contract for fixing expansion bolts, strengthening and special repairs to various structures and machine foundation in CHP at CSTPS, Chandrapur.
When plants reach full bloom, in early July, they are secured to the wall with clips and expansion bolts (see photograph at bottom right).