fischer DuoTec Toggle Fixings

The fischer DuoTec toggle fixing is an intelligent 2-component gravity toggle fixing that can support high loads in both cavity and solid walls. As a member of the DUO line range, the fischer DuoTec comprises two plastic components. The red and hard component of the plug sleeve facilitates the consistent distribution of the load, while the grey and soft component prevents damage to the panel's surface by the fixing, reducing the load. The fischer DuoTec works brilliantly in cavity walls, but it can also be used like a conventional expansion plug in solid walls.

One advantage of the fischer DuoTec toggle fixing over some of the other alternatives on the market such as Toggler fixings or TIMco Zip Fix, is that the DuoTec allows you to use both metric threaded screws and also chipboard screws, thanks to the clever geometry of the anchor. This enables you to use the DuoTec as a more versatile fixing, suitable for a wider range of applications.

There are no special tools required to install. The DuoTec10 just needs a 10mm drill hole, and the DuoTec12 just needs a 12mm drill hole. Remember that you can use chhipboard screws and metric screws in cavity installations, but in solid wall installations you can use chipboard screws only.

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Substrate Types

The fischer DuoTec toggle fixings can be installed a variety of building materials and will work in both cavity walls and solid walls. You can also use the DuoTec fixing in cavity walls that have insulation present. The images below show how the DuoTec fixing works in different types of substrates.

dupower plug installed into a solid concrete wall

fischer DuoTec toggle fixing installed into a cavity wall

dupower plug installed into a plasterboard cavity wall

fischer DuoTec toggle fixing installed into a cavity wall with insulation

dupower plug installed into aerated brick

fischer DuoTec toggle fixing installed into a solid wall

Installation into Cavity Walls

When fixing into cavity walls you can use both wood/chipboard screws and metric machine thread screws

1) Drill hole into cavity wall

2) Insert DuoTec plug into hole

3) Pull DuoTec back against the wall

4) Secure into place

5) Snap off the excess

6) Fasten fixture into place

Installation into Solid Walls

When fixing into solid walls you can use *ONLY* wood/chipboard screws

1) Drill hole into solid wall

2) Insert DuoTec plug into hole

3) Snap off the excess

4) Fasten fixture into place

Loading Data Table

The below load data table is a useful reference table with recommended loads for DuoTec fixings in different common building materials. The loadings are all given in Kilonewtons - for a rough conversion to Kilo you can multiply by 100, so for example 0.30 kN x 100 = 30 Kilo.

fischer DuoTec Load Data
Highest recommended loads¹⁾²⁾ for a single anchor based on screws of a given diameter
Type			DuoTec10				DuoTec12
			Chipboard screws		Metric Screw	fischer hook	Chipboard screws		Metric Screw	fischer hook
Screw diameter		[mm]	4.5	5.0	5.0	5.0	5.0	6.0	6.0	5.5
Recommended loads in the respective base material³⁾ for a span in the construction b = 625mm
Gypsum plasterboard	9.5mm	[kN]	0.17	0.17	0.17	0.17	0.17	0.17	0.17	0.17
Gypsum plasterboard	12.5mm	[kN]	0.20	0.20	0.20	0.20	0.20	0.20	0.20	0.20
Gypsum plasterboard	2 x 12.5mm	[kN]	0.43	0.43	0.43	0.30⁴⁾	0.43	0.43	0.43	0.43
Gypsum fireboard	12.5mm	[kN]	0.51	0.51	0.51	0.30⁴⁾	0.51	0.51	0.51	0.50⁴⁾
Chipboard	16mm	[kN]	0.71	0.71	0.71	0.30⁴⁾	0.75	0.80	0.80	0.50⁴⁾
OSB	18mm	[kN]	0.75	0.75	0.75	0.30⁴⁾	0.75	1.30	1.30	0.50⁴⁾
Recommended loads in the respective base material³⁾ for a span in the construction b = 120mm
Gypsum plasterboard	9.5mm	[kN]	0.20	0.20	0.20	0.20	0.20	0.20	0.20	0.20
Gypsum plasterboard	12.5mm	[kN]	0.36	0.36	0.36	0.30⁴⁾	0.36	0.36	0.36	0.30⁴⁾
Gypsum plasterboard	2 x 12.5mm	[kN]	0.59	0.59	0.59	0.30⁴⁾	0.70	0.80	0.80	0.50⁴⁾
Gypsum fireboard	12.5mm	[kN]	0.75	0.75	0.75	0.30⁴⁾	0.80	1.10	1.10	0.50⁴⁾
Chipboard	16mm	[kN]	0.75	0.75	0.75	0.30⁴⁾	0.80	1.40	1.30	0.50⁴⁾
OSB	18mm	[kN]	0.75	0.75	0.75	0.30⁴⁾	0.80	1.50	1.40	0.50⁴⁾
Recommended loads in solid building materials³⁾
Concrete	≥C20/25	[kN]	0.45	0.75		0.30⁴⁾	0.40	0.75		0.30⁴⁾
Wood		[kN]	0.30	0.75		0.30⁴⁾	0.20	0.65		0.30⁴⁾
¹⁾You must conduct your own necessary assessments/tests
²⁾These are reference values only and are dependent on the building material and workmanship. Only valid for the given screw diameter
³⁾Valid for tensile load, shear load and oblique load under any angle
⁴⁾Bending of the hook is the decisive factor in maximum recommended load. These values are only for tension load.