Torque-Controlled Expansion Fixing for Concrete Applications
When a fixture needs to transfer load into concrete, the anchor becomes part of the connection—not just the final step of installation. ICCONS® Thru Bolt - Stud Anchor Zinc Gal SS provides a mechanical expansion fixing system for compatible concrete applications where controlled installation, dependable expansion & practical site performance are required.
The installation principle is straightforward: position the fixture, install the anchor through the hole & tighten the nut to activate expansion. The sleeve expands against the drilled hole, creating the mechanical grip between the anchor, fixture & concrete.
Available across zinc, galvanised & stainless steel configurations, ICCONS® Thru Bolt options allow installers to consider both the connection requirement & the environment surrounding the fixing.
For buyers comparing mechanical anchor options, explore ICCONS® | Hex Screw Bolts - Sxtm, compare general sleeve-anchor solutions through ICCONS® | Sleeve Anchors Hex Zinc Gal SS or prepare drilling requirements with Concrete Cutting & Drilling Tools.
What Are ICCONS® Thru Bolt Stud Anchors?
A thru bolt anchor creates its holding force through controlled expansion inside the drilled hole. The anchor passes through the fixture, the nut is tightened & the sleeve expands against the surrounding concrete.
The system is designed around:
► Stud anchor construction
► Torque-controlled expansion
► Through-fixing installation
► Mechanical connection without adhesive curing
► Zinc, galvanised & stainless steel options
► Multiple diameter & length choices
► Compatible concrete applications
► Brackets, plates, frames & support structures
Typical uses include:
► Steel baseplates
► Equipment supports
► Structural brackets
► Mechanical service supports
► Industrial fixtures
► Commercial construction attachments
► Precast concrete connections
The stud-anchor design makes the installation process easy to understand. The fixture remains positioned while the anchor is expanded, creating a direct mechanical connection between the component & the concrete.
Why Choose ICCONS® Thru Bolt Stud Anchors?
Build a Mechanical Expansion Connection
Some applications require the proven behaviour of a traditional expansion anchor. Thru bolts create their fixing action by expanding inside the prepared hole, producing mechanical contact with the surrounding concrete.
This makes them suitable for compatible fixing tasks where expansion anchoring is the preferred connection method.
Install Through the Fixture
Large brackets & mounting plates often need to stay perfectly aligned during installation. Through-fixing allows the anchor to pass through the fixture before tightening.
This can simplify positioning during construction, maintenance & equipment installation.
Use Controlled Torque Installation
Consistency matters when several anchors form one assembly. Torque-controlled installation provides a repeatable method for expanding the sleeve correctly.
That makes the system practical across commercial & industrial projects where multiple fixings need similar installation results.
Select Material Around the Environment
The environment around the anchor should decide the material choice before the anchor reaches the job. Zinc, galvanised & stainless steel options allow selection based on exposure conditions, surrounding materials & project requirements.
For stainless fastening requirements, browse Stainless Steel Fasteners.
Remove & Replace Where Required
Equipment layouts, service routes & building requirements change over time. Mechanical anchors can provide a practical option where future removal or replacement may be required.
The condition of the existing concrete should always be assessed before installing replacement fixings.
Common Applications
Steel Baseplates
A steel baseplate relies on every fixing point sharing the connection load correctly. ICCONS® Thru Bolts can provide suitable mechanical attachment for compatible baseplates installed into concrete.
Confirm plate thickness, anchor spacing, edge distance & project requirements before installation.
Equipment Mounting
Industrial equipment needs a connection designed around the forces it experiences. Thru bolts can support compatible equipment bases, brackets & mounting frames where the substrate & anchor specification match the application.
For workshop support requirements, browse Workshop Equipment.
Structural Brackets
The bracket may be visible, but the anchor carries the connection behind it. Compatible structural brackets & support components can use thru bolts where the concrete condition & installation requirements allow.
Mechanical Services
HVAC, plumbing & mechanical systems depend on secure support points throughout a building. Thru bolts can form part of suitable bracket & support arrangements for compatible service installations.
For suspended concrete support alternatives, explore ICCONS® | Concrete Hangers.
Commercial Construction
Commercial buildings create countless connections between fixtures, frames & concrete structures. Mechanical expansion anchors remain a familiar solution where the application suits their installation method.
Precast Concrete Installations
Precast elements require fixing methods that respect the finished concrete component. Thru bolts can provide suitable mechanical connections for compatible brackets, supports & attachments where the concrete element meets the anchor requirements.
The installation location, edge distances & concrete condition should be confirmed before drilling.
Industrial Maintenance
A working facility often needs new attachments long after the original build is complete. Removable mechanical anchors can provide practical fixing options during equipment changes, repairs & service upgrades.
Product Selection Guide
Choosing the anchor begins with the connection detail, not the size printed on the box.
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Selection Factor
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What To Confirm
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Diameter
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Required anchor size
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Length
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Suitable embedment after fixture thickness
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Material
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Environment & exposure conditions
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Concrete condition
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Suitable substrate requirements
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Edge distance
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Positioning suitability
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Torque setting
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Correct expansion procedure
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Zinc, Galvanised & Stainless Thru Bolts
Material choice should follow the environment around the fixing.
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Finish
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Typical Consideration
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Zinc
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General indoor applications
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Galvanised
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Increased corrosion protection
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Stainless steel
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Higher corrosion resistance requirements
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The environment around the fixing should determine the material choice before installation begins.
Thru Bolt vs Hex Screw Bolt
Both provide mechanical concrete fixing, but they create their connection differently.
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Feature
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Thru Bolt
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Hex Screw Bolt
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Connection method
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Expansion sleeve
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Thread cutting
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Installation
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Torque tightening
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Screw-in installation
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Fixture installation
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Through fixing
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Different installation approach
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Removal
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Possible
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Possible
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Selection focus
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Expansion performance
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Thread engagement
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For screw-in alternatives, compare ICCONS® | Hex Screw Bolts - Sxtm.
Thru Bolt vs Sleeve Anchor
The names may sound similar, but the anchor construction & installation process are different.
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Feature
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Thru Bolt
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Sleeve Anchor
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Anchor style
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Stud anchor
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Sleeve expansion anchor
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Installation
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Torque-controlled expansion
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Sleeve expansion tightening
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Typical use
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Higher-demand mechanical fixing
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General mechanical fixing
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Through fixing
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Yes
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Yes
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For countersunk sleeve options, explore ICCONS® | Sleeve Anchors Csk.
Thru Bolt vs Drop-In Anchor
The biggest difference is where the threaded connection sits.
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Feature
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Thru Bolt
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Drop-In Anchor
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Anchor type
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Stud expansion anchor
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Internal threaded anchor
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Fixture installation
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Through fixing
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Fixture attached after anchor installation
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Thread connection
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External stud
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Internal thread
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Common use
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Plates, brackets & mounted fixtures
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Suspended threaded connections
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The suitable choice depends on whether the project requires a projecting stud or an internal threaded connection.
Expert Tips
Check Concrete Before Drilling
A strong anchor still depends on the material receiving it. Cracks, repairs, previous holes & concrete condition should be considered before installation.
Use the Correct Hole Preparation
The drilled hole forms part of the anchor system. Correct diameter, depth & cleaning help create the intended expansion connection.
For drilling guidance, read The Tradies Guide To Drill Bits.
Clean Out Dust Before Setting
Loose concrete dust changes the environment inside the hole. Remove debris before installing the anchor.
Follow Torque Requirements
Torque is part of the anchor design. Tightening beyond the required setting point does not automatically improve the connection.
Maintain Edge Distance
Expansion forces interact with the surrounding concrete. Position anchors correctly according to the application requirements.
Match Stainless Components Together
A stainless anchor does not automatically make the complete assembly stainless. Consider brackets, plates, washers & surrounding components together.
Separate Different Materials
Zinc, galvanised & stainless anchors can look similar in storage. Keep finishes separated to prevent incorrect installation.
For organisation solutions, browse Portable Organisers.
Consider the Complete Load Path
The anchor is only one part of the finished connection. Fixture design, spacing, supporting components & installation method all contribute to the completed system.
For broader fastening information, read Fastener Guide Bolts Screws Anchors.
