High-tensile, self-tapping concrete screw anchor designed for fast, reliable installation across a wide range of base materials
ETA approved for cracked and uncracked concrete, fire rated, and seismic rated
C1 & C2 Seismic approvals
Delivers high load performance with low expansion forces, ideal for close-to-edge and reduced spacing applications
One-piece design – drill, clean, and install with a torque wrench or impact driver
Fully removable, making it suitable for temporary or adjustable fixings
Thread-forming teeth cut into the base material for consistent holding strength along the full embedment depth
Wide size range for light to structural applications
Available sizes: 6 x 45mm 6 x 50mm 6 x 60mm 6 x 75mm 6 x 100mm 8 x 55mm 8 x 70mm 8 x 75mm 8 x 90mm 8 x 100mm 10 x 60mm 10 x 75mm 10 x 80mm 10 x 90mm 10 x 100mm 10 x 110mm 10 x 120mm 10 x 140mm 12 x 80mm 12 x 100mm 12 x 120mm 12 x 150mm
ICCONS Thunderbolt®Pro Hex Head is the latest high tensile screw-in, self-tapping concrete and masonry anchor for use in a wide range of materials used in the construction Industry. Trusted by engineers and architects in New Zealand. The entire range equipped with ETA assessments for cracked concrete, fire performance and seismic ratings (please see technical data for specification requirements).
Key technical specifications:
Product type: Screw Anchor
Finish options: High Tensile Steel - Zinc Yellow, High Tensile Steel - Galvanised Nautilus C, Stainless Steel.
Head style: Hex head, Countersunk head
Base material: Concrete, cracked concrete, stone, solid brick, hollow brick, aerated concrete.
Special features: Removable, European Assessment ETA, Fire Rated.
Load performance: Medium loads, light loads.
B1 Structure: clauses B1.1, B1.2, B1.3.1, B1.3.2, B1.3.3, B1.3.4:
ICCONS Thunderbolt Pro-SXTB bolts comply with standard AS 5216:2021 (Design of post-installed and cast-in fastenings in concrete).
ETA assessed for cracked concrete, fire performance and C1/C2 seismic ratings (ETA-20/0902, of 03/08/2021). Assessment options vary based on part number. Refer to document 'ETA - C1 & C2 Approval' and ' ThunderBolt®PRO Catalogue' to confirm the specific assessment options available per bolt: https://sestofasteners.co.nz/products/thunderbolt%C2%AEpro-hex-head?_pos=1&_sid=6fa3d2993&_ss=r
ICCONS Thunderbolt Pro-SXTB is compliant with the requirements referenced in the National Construction Code (NCC).
CE certified.
Suitable for medium loads.
Suitable for overhead applications.
Available on ICCONS Design Pro AS 5216:2021 compliant software.
Performance data values are available, derived from the product ETA (ETA 20/0902) and in accordance with AS 5216:2021. Data is available across a range of parameters and conditions, including qualification based on ETA 20/0902 - Option 1 and ETA 20/901 redundant non-structural systems (RNSS). Refer to page 16, document 'ThunderBolt®PRO Catalogue' and ETA 20/0902 for more details.
B2 Durability: Performance clauses B2.2Materials specifications:- Zinc: Carbon Steel Zinc Coating ≥ 5 μm plus Red Tip.- Galvanised: Carbon Steel NAUTILUS C Coating plus Red Tip.- Stainless Steel: Shaft and Head 316 (A4) and Tip - Hardened Carbon Steel.Corrosion resistant Nautilus® C coating available. Nautilus® C corrosion resistant coating is a multilayered corrosion resistant coating designed for indoor applications as well as outdoor applications based on urban and industrial atmospheres, moderate sulfur dioxide pollution and coastal areas with low salinity. This is typically covered in EN ISO 12944-2, corrosivity category environment C3 and durability range HIGH according to EN.316 SS (A4) Stainless Steel: ideal for external use.Screwbolt design provides no expansion, ideal for close to edge applications.Suitable for installation with impact drivers.Removable, tamperproof options available.Optimum high-performance concrete and masonry screw-bolt anchor.Flanged hex head design with "lightning bolt" locking serrations for a secure fix.Also available in CSK, internal thread, external thread, pan and truss head designs.Stamped head markings for easy identification and traceability.
C6 Structural Stability (Fire Safety): Performance clauses C6.1, C6.2:
ICCONS Thunderbolt Pro-SXTB bolts have been ETA assessed for fire performance (ETA-120/0902). Refer to document 'ETA - C1 & C2 Approval' in link below for testing data (Annex C8 and C9): https://sestofasteners.co.nz/collections/screwbolts/products/screwbolt-hex-galv?variant=37578216538281
F2 Hazardous Building Materials: Performance clause F2.3.1
ICCONS Thunderbolt Pro-SXTB bolts are safe when handled.
ICCONS ThunderBolt®Pro SXTB bolts have been designed for use in the following applications:
- Structural fixings in cracked and uncracked concrete
- Tunnel fit out
- Cable tray support systems
- Seismic bracing of MEP systems
- Fastening steel strut channel and support straps for MEP
- Facade structures
- Guard rails
- Bollards and protective barriers
- Machinery and plant equipment
- Stadium and theatre seating
- Acoustic barriers
- Balustrades and hand rails
- Scaffolding ties
- Formwork
- Plumbing and fire services
- Steel frame construction
- Timber frame construction
- Glazing, windows and storefronts
- Racking and shelving
- Fixing wood structures in concrete
Refer to the “How To Install” and “Install Torque Specs” documents, and page 9 of the “ThunderBolt®PRO Catalogue” via the link provided.
Installation Steps:
Drill a hole using the correct diameter bit to the required embedment depth plus at least one anchor diameter deeper. Caution: Drill perpendicular to the surface (max 5° deviation) to avoid anchor breakage.
Clean all dust and debris from the hole. Caution: Do not use worn drill bits outside tolerance, as this can affect performance.
Install the anchor using a torque wrench or impact driver. Apply pressure to engage the thread, then tighten until the flange head is firmly seated. Caution: Do not exceed recommended torque, this may cause breakage.
Installation complete.
Caution: Do not over tighten.
Torque: Always follow product-specific torque specs from technical data sheets, product guides, or labels.
N/A. no ongoing maintenance required.
THUNDERBOLT®PRO - SXTB HEX HEAD
This product has no warnings associated with it.
