The ICCONS THRU-BOLT™ ULTRA is the latest addition to Sesto’s mechanical anchoring range, delivering high tensile and shear load capacities alongside greater flexibility in anchor embedment.
Designed for demanding concrete applications, THRU-BOLT™ ULTRA combines variable anchorage depths, high approved loads, seismic C1/C2 performance and fast installation in a single mechanical expansion anchor.
Available in 316 stainless steel (A4) and sizes from M8 to M20, the range provides a high-performance anchoring solution for structural, civil, commercial and seismic applications.
More flexibility in anchor design
A major advantage of THRU-BOLT™ ULTRA is the ability to work across multiple anchorage depths.
Rather than being restricted to a single embedment configuration, designers and installers can select an anchorage depth appropriate to the application.
A deeper embedment can be used where greater load capacity is required, while reduced embedment depths can minimise drilling and help reduce the likelihood of encountering reinforcement.
This provides greater flexibility when balancing load requirements, fixture thickness, edge distances and installation conditions.
High tensile and shear performance
THRU-BOLT™ ULTRA has been engineered for demanding medium to heavy-duty concrete fixing applications, providing exceptionally high approved tensile and shear capacities.
The anchor is ETA assessed for cracked and non-cracked concrete and assessed for seismic categories C1 and C2, making it suitable for applications where both structural performance and compliance are critical.
Key approvals and performance characteristics include:
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High approved tensile and shear load capacities
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Variable anchorage depths
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Shallow minimum embedment depths
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ETA assessed for cracked and non-cracked concrete
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Seismic Categories C1 and C2
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AS 5216 compliant
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NCC compliant
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Fire resistance from R30 to R120
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Dynamic shock load approval by the Swiss Federal Office
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M8 and M10 suitable for fibre-reinforced concrete
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Optional adhesive filling with a Filling Washer for enhanced seismic performance
Faster installation on site
High performance doesn't need to mean a complicated installation.
THRU-BOLT™ ULTRA has been designed to reduce installation time through fewer nut turns to achieve the specified torque, while a coloured depth indicator provides installers with a simple visual reference during installation.
For repetitive anchor installation, these small improvements can translate into meaningful time savings across a project.
The M20 THRU-BOLT™ ULTRA also allows minimal borehole cleaning under the specified installation procedure, with no brushing required.
Built for demanding concrete applications
The combination of high load performance, multiple embedment options and extensive approvals makes THRU-BOLT™ ULTRA suitable across a broad range of construction applications, including:
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Structural steel connections
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Civil infrastructure and bridgework
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Mechanical, electrical and plumbing supports
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Cable trays and cable ladders
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Pipe supports
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HVAC systems
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Utility channels
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Façades and cladding
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Heavy-duty brackets and supports
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Seismic applications
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Timber structures fixed to concrete
316 Stainless Steel for Corrosive Environments
The THRU-BOLT™ ULTRA range is available in A4 316 stainless steel, providing excellent corrosion resistance for demanding environments and applications where long-term durability is required.
The range covers M8 through to M20, with multiple lengths available to accommodate different fixture thicknesses and anchorage requirements.
Depending on anchor size and application, minimum, standard and maximum embedment configurations allow the fixing to be tailored to the required performance.
Designed with Engineers in Mind
THRU-BOLT™ ULTRA can be designed using ICCONS DESIGN PRO, providing engineers and specifiers with an AS 5216 compliant workflow for concrete anchor design.
Combined with Sesto's technical support and the ICCONS engineering team, this makes it easier to select and specify the appropriate anchor configuration for demanding projects.
Why Choose THRU-BOLT™ ULTRA?
THRU-BOLT™ ULTRA brings together three important requirements for modern concrete anchoring: performance, flexibility and installation efficiency.
Its high tensile and shear capacities provide the performance required for demanding applications, while variable anchorage depths give engineers greater freedom when designing connections.
For installers, shallow embedment options, fewer installation turns and the visual depth indicator help make installation faster and more straightforward.
With ETA assessment, AS 5216 compliance, NCC compliance, C1/C2 seismic assessment and R30–R120 fire resistance, THRU-BOLT™ ULTRA provides a versatile new option for high-performance concrete anchoring.
THRU-BOLT™ ULTRA Range at a Glance
Material: A4 316 Stainless Steel
Sizes: M8–M20
Concrete: Cracked and non-cracked
Seismic: C1 & C2
Compliance: ETA assessed, AS 5216 and NCC compliant
Fire Resistance: R30–R120
Embedment: Variable anchorage depths
Design Software: ICCONS DESIGN PRO compatible
THRU-BOLT™ ULTRA FAQs
What is THRU-BOLT™ ULTRA?
THRU-BOLT™ ULTRA is a high-performance mechanical expansion anchor designed for medium to heavy-duty anchoring into concrete.
Can THRU-BOLT™ ULTRA be installed in cracked concrete?
Yes. THRU-BOLT™ ULTRA is ETA assessed for use in both cracked and non-cracked concrete.
Is THRU-BOLT™ ULTRA suitable for seismic applications?
Yes. The anchor is assessed for seismic categories C1 and C2. An optional Filling Washer and adhesive filling system can also be used for enhanced seismic performance where required.
Is THRU-BOLT™ ULTRA AS 5216 compliant?
Yes. THRU-BOLT™ ULTRA complies with AS 5216 requirements for concrete anchoring.
What sizes are available?
THRU-BOLT™ ULTRA is available from M8 through to M20, with multiple lengths available across the range.
What material is THRU-BOLT™ ULTRA available in?
The range is available in A4 316 stainless steel, providing high corrosion resistance.
What makes THRU-BOLT™ ULTRA different?
Its combination of high approved tensile and shear capacities, variable embedment depths, shallow minimum embedment, close edge and spacing capabilities, seismic C1/C2 assessment and faster installation features differentiates THRU-BOLT™ ULTRA from conventional mechanical expansion anchors.
Can THRU-BOLT™ ULTRA be designed in ICCONS DESIGN PRO?
Yes. THRU-BOLT™ ULTRA is supported within ICCONS DESIGN PRO for compliant anchor design and specification.
Available in New Zealand through Sesto Fasteners
ICCONS THRU-BOLT™ ULTRA is available in New Zealand through Sesto Fasteners and our nationwide distribution network.
For product selection, technical information, engineering support or assistance specifying THRU-BOLT™ ULTRA for your next project, contact the Sesto team.