Anchor types and selection

How different anchor systems work and what to check when selecting one.

7 guides

Throughbolt (wedge) anchors explained

How tightening sets a throughbolt (wedge anchor), how anchor length suits fixture thickness and embedment, which installation conditions control setting, and which failure modes limit its resistance.

Anchor types and selection4 min read

Heavy-duty sleeve anchors explained

The roles of the bolt, shear sleeve, collapsible section and expansion assembly of a heavy-duty sleeve anchor, and how setting, dimensions and head version affect its use.

Anchor types and selection4 min read

Drop-in anchors explained

How a setting tool expands a drop-in anchor, how the bolt or threaded rod is matched to it, and which installation and concrete conditions limit its use.

Anchor types and selection3 min read

Undercut anchors explained

How an undercut anchor transfers tension by bearing in a recess, how the recess is formed, how complete setting is verified and which failure modes limit its resistance.

Anchor types and selection3 min read

Concrete screw anchors explained

How a concrete screw transfers load through threads cut into the hole wall, what controls installation, and how embedment, adjustment and reuse affect its use.

Anchor types and selection3 min read

Resin bonded (chemical) anchors explained

How a resin bonded (chemical) anchor transfers load by bond, how anchoring differs from post-installed rebar connections, and how hole preparation, curing, temperature and sustained load affect it.

Anchor types and selection5 min read