expansion bolt
Gripping wall fastener
An expansion bolt is a fastener designed to anchor into concrete, masonry, or other hard materials by expanding against the sides of a drilled hole.
When tightened, a sleeve or wedge mechanism spreads outward, gripping the surrounding material and creating a secure hold.
Used for mounting heavy fixtures like shelving, handrails, or machinery to walls and floors: The contractor used expansion bolts to secure the water heater to the concrete slab.
- anchorSecures ships to seabed
- concreteSolid building mixture
- concrete wallRigid masonry partition
- masonryBuilding with mortared blocks
- drillHole-boring device
pilot hole · power drill · sleeve · toggle · fastener · wall · socket · socket wrench · grip · secure · tighten · wrench · torque · hole · stud · threaded · heavy-duty · mounting
expansion boltwood screw
Threaded fastener for lumber
nail · toggle bolt · rivet · machine screw · friction fit
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