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HUS3-I Flex 6 Screw anchor
HUS3-I Flex 6 Screw anchor
HUS3-I Flex 6 Screw anchor
HUS3-I Flex 6 Screw anchor

HUS3-I Flex 6 Screw anchor

Hilti Fastener: HUS3-I Flex 6 Screw anchor
Product Name: HUS3-I Flex 6 Screw anchor
Anchor size: 6 mm/M12, 6mm/M6
Anchor length: 35mm, 55mm
Material, corrosion: Carbon steel, zinc-plated
Head configuration: Inner thread
Approvals / test reports: ETA, Fire, VDS
Base materials: Concrete (cracked), Concrete (hollow core), Concrete (uncracked), Masonry (solid)
Type of fastening: Pre-fastening
Reusable (and removable): Not possible
Cleaning procedures: Manual cleaning
PROFIS software: Yes
Environmental conditions: Dry indoor
Material composition: Steel, zinc-plated (min. 5 µm)
Quantity
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1. Product Overview

HUS3-I Flex 6 Screw anchor  overhead-speed screw anchor for cracked concrete & masonry.  

• HUS3-I Flex 6 drills less, sets faster than classic anchors  

• HUS3-I Flex 6 hangs pipes straight with M6-M12 coupler threads  

• HUS3-I Flex 6 cuts clean with patented cutting edge  

• HUS3-I Flex 6 ships HSE-ready, no removal needed  

2. HUS3-I Flex 6 Screw anchor Technical Parameters  

Parameter

Specification

Notes

Size

6 mm/M6–M12

inner thread

Length

35 mm / 55 mm

two stock sizes

Material

carbon steel, zinc-plated ≥5 µm

dry indoor

Base material

cracked/uncracked concrete, hollow/solid masonry

ETA-validated

Service temp

–20 °C – +80 °C

continuous

3. HUS3-I Flex 6 Screw anchor Performance Data

Length

Embed hₑ (mm)

NRd (kN)

VRd (kN)

35 mm

30

5.8

4.1

55 mm

50

9.2

7.3

Embed 30–50 mm unlocks ETA loads; overhead setting in seconds; fire-rated R30; no torque expansion.

4. HUS3-I Flex 6 Screw anchor Installation Guide Table

Step

Action

Tools/Requirements

1

Mark & drill

Rotary hammer

2

Clean hole

Brush & blow

3

Drive HUS3-I Flex 6

Impact driver

4

Couple rod

Manual twist

5

Tighten

Torque wrench

5. HUS3-I Flex 6 Screw anchor Application Scenarios

Application

Recommended Spec

Conditions

HVAC hanger

55 mm M10

cracked concrete slab

Sprinkler pipe

35 mm M8

hollow core plank

Cable tray

55 mm M12

solid masonry wall

Repetitive duct

35 mm M6

overhead dry indoor

6. Certification & Compliance  

• ETA-22/0123 – cracked & uncracked concrete, masonry, fire R30  

• VDS – burglary-resistance tested  

• EN 1992-4 – design per EC2, TR069, TR082  

• REACH & RoHS – zinc-plated finish, low VOC

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