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🧱Fix into concrete or brick with the wrong anchor and it works loose or never grips at all. Match the anchor to the load and the base material and it holds solid. Here is how.
Fixing into concrete, brick or block is a different game to timber or plasterboard. The base material is hard and often inconsistent, so the anchor has to grip reliably in solid or hollow masonry. Choose the right concrete anchor and the fixing holds for good. Choose the wrong one and it spins, works loose, or splits the material.
This guide covers the main concrete and masonry anchors, how they grip, and how to match the anchor to the load and the base material.
📌Quick summary
Most masonry fixings work one of two ways. Expansion anchors, like sleeve and wedge types, expand against the sides of a drilled hole as you tighten them, wedging tight. Screw-in masonry anchors cut their own thread directly into the masonry, much like a screw into timber. Both rely on a correctly drilled hole.
Masonry anchors live or die by the hole. Drill it to the right diameter and depth, clean out the dust, and the anchor grips as designed. An oversized or dusty hole is the most common reason a fixing fails, so getting the hole right is half the job.
Sleeve anchors suit medium loads and are versatile, working in concrete, brick and block. Wedge anchors are the heavy-duty choice for solid concrete, expanding hard against the hole for maximum hold, which is why they suit structural and load-bearing fixings.
Screw-in masonry anchors, and plastic plug systems for lighter jobs, are quick to fit and some can be removed. They suit lighter loads like fixtures, brackets and fittings where a full expansion anchor would be overkill.
💬Not sure which anchor suits your base material and load? The team at Select Fasteners in Heatherbrae can point you the right way. Give them a call on (02) 4020 7951.
Base material matters. Solid concrete takes the full range including wedge anchors. Brick and hollow block are more variable, so a sleeve or a purpose-made hollow anchor that spreads load is often the safer pick. Always check the anchor is rated for the material you are fixing into.
Match the anchor size and type to the load, and keep a safety margin. For heavy or structural fixings into concrete, step up to a wedge anchor rated for the job and make sure it suits the conditions and meets the relevant Australian standards. For lighter work, a sleeve or screw-in anchor is usually plenty.
Select Fasteners stocks sleeve, wedge and screw-in masonry anchors as part of our hardware and fittings range, including trusted brands such as ICCONS. The trade specialist team at the Heatherbrae store has decades of experience matching anchors to the base material and load.
You will find the rest of the fasteners and fixings a job needs in the same shop, so you can sort it all in one trip.
Match it to the load. Wedge anchors suit heavy-duty fixing into solid concrete, sleeve anchors suit medium loads and also work in brick and block, and screw-in or plastic anchors suit lighter jobs. Always check the anchor is rated for your base material.
A sleeve anchor expands a sleeve along its length and is versatile across concrete, brick and block for medium loads. A wedge anchor expands a small wedge at the tip for maximum grip in solid concrete, which suits heavy-duty and structural fixings.
Some, yes. Sleeve anchors and purpose-made masonry anchors work in brick, but wedge anchors are really for solid concrete. Hollow brick and block need an anchor designed to spread load, so check the anchor is rated for the material.
Usually the hole. An oversized, shallow or dusty hole stops an anchor gripping properly. Drill to the correct diameter and depth, clean out the dust, and match the anchor to the load and base material.
Use a wedge anchor rated for the load, set in solid concrete in a hole drilled to size and cleaned out. For structural fixings, make sure the anchor suits the load and conditions and meets the relevant Australian standards, and ask our team if unsure.
Yes. Dust left in the hole stops expansion anchors gripping and adhesives bonding, and is a common cause of failure. Blow or brush out the hole before fitting the anchor.
The right anchor, in a properly drilled hole, holds solid for the long haul. The team at Select Fasteners in Heatherbrae will match the right anchor to your base material and load.
Give the team a call on (02) 4020 7951, drop by the store at 1 Archibald Place, Heatherbrae, or send us an online enquiry!
We supply anchors, fixings and trade supplies across Port Stephens, Newcastle, the Hunter Valley and Dungog, with the largest range north of the Hunter River.
Select Fasteners is a specialist fastener and industrial supplies business based at 1 Archibald Place, Heatherbrae NSW, serving Port Stephens, Newcastle, the Hunter Valley and Dungog. This article is general information only and does not account for the specific conditions of your project. For structural work, get advice specific to your job from the team.
02 4020 7951
