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Brand: Hilti
Hilti HST3 Torque-Controlled Wedge Anchor M8-M24
Description
The Hilti HST3 is a torque-controlled wedge (expansion) anchor for cracked and non-cracked concrete, sized M8 to M24. Hilti calls it its ultimate-performance expansion anchor, assessed under ETA-98/0001 with seismic categories C1 and C2, and describes it for all safety-relevant fastenings such as hand rails and racks.
Why a seismic-assessed wedge anchor matters on structural steel and racking
The Hilti product page states increased undercut percentage with an optimised coating, two embedment depths in the ETA, and minimum edge and spacing distances reduced by up to 25 percent compared with the HST. The datasheet adds suitability for concrete C12/15 to C80/95 (the ETA itself covers C20/25 to C50/60, with other classes under Hilti technical data), approved non-cleaning of hammer-drilled holes, use with an impact wrench with adaptive torque module, and a product and length identification mark for inspection.
Technical specifications
| Parameter | Specification |
|---|---|
| Anchor type | Torque-controlled wedge anchor, concrete |
| Sizes | M8, M10, M12, M16, M20, M24 (HST3 and HST3-R); M8 to M16 for the dome-nut DN version; BW versions M8 to M24 |
| Product page material | Carbon steel, zinc-plated, externally threaded head (HST3) |
| Bolt material (datasheet) | HST3: carbon steel, galvanized, transparent coating; HST3-R: stainless steel A4, cone coated |
| Nominal tensile strength fuk | HST3 800 N/mm2 (M8 to M12), 720 (M16), 700 (M20), 530 (M24); HST3-R 720, 710, 710, 650, 650, 650 |
| Approvals listed | ETA-98/0001 (DIBt, 2023-07-20) with fire test report; IAPMO Uniform Evaluation Service report 578; FM certificate 003053697; shock approval BZS D 08-602 for M10 to M24 |
| Seismic | ETA categories C1 and C2 |
| Drill bit diameter | 8, 10, 12, 16, 20, 24 mm |
| Installation torque | 20, 45, 60, 110, 180, 300 Nm for M8 to M24 |
| Standard embedment hef | 47 (M8), 60 (M10), 70 (M12), 85 (M16), 101 (M20), 125 mm (M24); shorter option 40, 50, 65 mm for M10, M12, M16 |
| Maximum anchor length | 260, 280, 350, 475, 450, 500 mm for M8 to M24 |
| Maximum fixture thickness | 195, 220, 270, 370, 310, 330 mm for M8 to M24 |
| Characteristic tension, cracked concrete (C20/25) | HST3 M8 8.0 kN, M10 15.0, M12 20.0, M16 27.0, M20 35.0, M24 40.0 kN (standard embedment) |
| Installation tools named on product page | TE 30-22 and TE 6-A22 cordless rotary hammers |
HST3 version selection
| Version | Material | Sizes | Note |
|---|---|---|---|
| HST3 | Galvanized carbon steel | M8 to M24 | Standard hex nut |
| HST3-R | Stainless steel A4 | M8 to M24 | Stainless steel A4 bolt, sleeve and nut |
| HST3 DN / HST3-R DN | Dome nut version | M8 to M16 | Dome nut covers the thread end |
| HST3 BW / HST3-R BW | BW versions in the same datasheet | M8 to M24 | Datasheet lists them with the adaptive torque tool approach |
The Hilti datasheet gives design values for tension and shear in cracked and non-cracked concrete, edge and spacing data per size, and fire resistance values; use PROFIS Engineering for non-standard embedment, edge distance or group cases.
Selection and ordering checks
Confirm the size, anchor length (the datasheet gives maximum lengths of 260 to 500 mm depending on size), the concrete condition, the base-material thickness and the corrosion environment before ordering; where the environment is corrosive or damp, confirm whether the stainless A4 HST3-R is the correct choice. Check the fixture thickness against the maximum length and the embedment depth. A larger-diameter, undercut alternative is the HDA anchor, and for chemical anchoring see HIT-HY 200-R V3.
Documents and quotation
For a quotation on the HST3, send Seven Star LLC the exact model, quantity and delivery point in Oman or elsewhere in the GCC. Seven Star LLC is an independent supplier based in Muscat and does not hold any manufacturer status for Hilti. The Hilti HST3 technical datasheet (update Nov-23) is attached as a manufacturer PDF. Current item numbers, pack sizes and availability should be read from the Hilti product page. Related Hilti items sit in the Material Handling & Lifting Equipment category.
Datasheets & Documents
- Datasheet Hilti HST3 expansion anchor technical datasheet (manufacturer PDF, Nov-23) Download
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About brand
Hilti is the Liechtenstein construction technology company for fastening, anchoring, firestop, installation and power tool systems. The brothers Martin and Eugen Hilti opened a small mechanical workshop in Schaan, Liechtenstein, in 1941, and the company turned to fastening technology after Martin Hilti acquired a fastening patent in 1948. Hilti is still headquartered in Schaan and controlled by the Martin Hilti Family Trust, created in 1980.
Seven Star LLC is an independent supplier in Muscat. We list Hilti power tools and firestop products, each with the manufacturer operating instructions, for contractors and maintenance teams in Oman and the GCC.
Hilti company profile
| Founded | 1941, Schaan, Liechtenstein |
|---|---|
| Founders | Martin Hilti and Eugen Hilti |
| Headquarters | Schaan, Liechtenstein |
| Ownership | Controlled by the Martin Hilti Family Trust (created 1980) |
| Product families | DX powder-actuated and BX battery fastening tools, stud fusion systems, mechanical and chemical anchors, CP and CFS firestop sealants and systems, MQ and MI installation channels, cordless power tools and measuring tools |
Milestones
- 1941: Martin and Eugen Hilti open a mechanical workshop in Schaan.
- 1948: Martin Hilti acquires a patent for fastening technology.
- 1952: The first international sales cooperation is agreed, in Italy.
- 1957: The DX 100 powder-actuated tool is introduced, which Hilti describes as the world's first.
- 1980: The Hilti family creates the Martin Hilti Family Trust.
Hilti product series
The power tools listed here include SDS Plus and SDS Max rotary and combihammers (TE 8-22, TE 70-22, TE 70-ATC/AVR), demolition hammers and breakers (TE 1000-AVR, TE 2000-22, TE 3000-AVR), angle grinders from 125 to 230 mm (AG 125-13S, AG 230-24D, AG 4D-22, AG 30D-22), cordless impact wrenches (SIW 6AT-22, SIW 10-22, SIW 20-22), the SF 30M-22 magnetic drill press, the SF 6H-22 hammer drill driver and the SC 6ML-22 metal-cutting circular saw. Many of the cordless models run on the 22 V Nuron battery platform.
Firestop products such as the CP 601S silicone sealant and CP 606 acrylic sealant seal penetrations and joints in fire-rated walls and floors.
Where Hilti tools are used
Drilling and anchoring in concrete, demolition and chiselling, steel fabrication and erection, bolting on structures and pipe supports, mechanical and electrical installation work and passive fire protection in buildings and industrial plants.
Hilti products we list
Ordering Hilti products: what we need
Give the tool designation and, if available, the item number. For cordless tools state whether you need the bare tool or a kit with batteries and charger; for corded tools give the supply voltage and plug type. For firestop products give the product, colour, cartridge size and quantity, and the fire rating or approval the project requires.
Facts checked against Hilti's published company history, October 2026.
Browse Hilti products by category: Material Handling & Lifting Equipment.
Related products
Frequently Asked Questions
What concrete is the HST3 suitable for?
Cracked and non-cracked concrete; the ETA covers C20/25 to C50/60 and Hilti technical data covers C12/15 to C80/95.
Does HST3 have a seismic approval?
Yes, the datasheet lists ETA seismic categories C1 and C2.
What is the difference between HST3 and HST3-R?
HST3 is galvanized carbon steel; HST3-R uses stainless steel A4 for the bolt, sleeve and nut.
Do the holes need cleaning?
The datasheet lists approved non-cleaning for hammer-drilled holes, with a deeper drill hole allowance.
Which sizes are available?
M8, M10, M12, M16, M20 and M24 per the datasheet.
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