Which building materials is this anchor designed for?

The Fischer FTP K 4 is designed specifically for aerated concrete and solid gypsum blocks.

What drill hole diameter is required?

You need an 8 mm drill diameter, or up to 10 mm depending on the density of the aerated concrete.

Which screws can you use with this plug?

It is compatible with wood screws (4 to 4.5 mm) as well as metric M4 screws.

How do you install the Fischer FTP K 4?

After pre-drilling, screw the anchor into place using the FTP EK setting tool.

Can you install this plug close to edges?

Yes, its spiral outer thread ensures an expansion-free hold, allowing for small edge and spacing distances.

FISCHER FTP K 4 aerated concrete anchor nylon - 78411

Name: FISCHER FTP K 4 aerated concrete anchor nylon - 78411
Brand: FISCHER
SKU: 87990167
Price: 0.71 EUR
Availability: PreOrder

Supplier number: FISCHER 78411 | EAN 4006209784112

0.71 tax incl.

€0.59 excl. VAT (incl. all environmental contributions)

On order: delivered from 14/10/2026

The minimum purchase order quantity for the product is 25.

Delivery by DHL

✆ Talk to a specialist

Reliable anchoring with Fischer FTP K 4

Practical benefits

Secure hold in aircrete: The spiral external thread cuts directly into the aerated concrete, giving you a strong and positive fit.
Flexible choice of screws: You can easily install this anchor using either standard wood screws or metric screws for maximum versatility.
Low expansion pressure anchoring: The specialized geometry enables you to work close to edges without causing cracks or damaging finished surfaces.

In a nutshell

The right choise for

With the Fischer ftp k 4 aircrete anchor, you can mount light fixtures and fittings securely into aerated concrete and solid gypsum blocks. Where standard expansion plugs tend to spin or break out in soft materials, the spiral outer thread of this nylon anchor cuts cleanly for a positive-fit hold. Because it creates virtually no expansion pressure, you can safely install close to edges without damaging plaster or finished surfaces. It works seamlessly with 4 to 4.5 mm wood screws as well as metric M4 screws, making it easy to fix pictures, lamps, or cable ducts.

Product information FAQ

€0.71

tax incl.

Key features according to our expert

Wire dimension: 4 mm
Overall length: 50 mm
Material: Plastic
Safety anchor: No
Drilling diameter: 8-(10) mm

Product description

The versatile plastic anchor for aerated concrete.

The fischer turbo Aircrete anchor FTP K is a special fixing for fixings in Aircrete. The anchor is made out of high-quality nylon and is set in the pre-positioned installation with the setting tool FTP EK after pre-drilling. The spiral external thread cuts a mechanical interlock in the building material. The fischer turbo Aircrete anchor FTP K is ideally suited to securely fix pictures, lights, cable and pipe clamps to aerated concrete.

For wood screws and metric screws
High retention forces due to interlocking in building materials
Convenient assembly: reduced wear and tear due to the setting tool
Low axial and edge distances due to expansion pressure-free anchoring
The FTP K is suitable for both wood screws and metric screws, and thus offers flexibility in screw choice
The spiral-shaped outer thread taps itself into the soft aerated concrete with a positive fit, thus ensuring a secure hold
Setting with the FTP EK setting tool requires only a small amount of force. For a convenient installation
The special geometry allows for an almost expansion-force-free anchoring. This allows for small edge and spacing distances, and avoids splitting in the case of plastered surfaces

Suitable for

The FTP K is suitable for pre-positioned installation
Set the FTP K with setting tool FTP EK. The aircrete anchor taps itself into the aerated concrete with a positive fit during the installation process
Suitable for wood and metric screws with diameter 4 to 10 mm

Building materials

Aerated concrete
Solid panel made from gypsum

Application

Pictures
Lighting
Shelves
Mirror cabinets
Letter boxes
Signs
Motion detectors
Cable and pipe clips
Stand-off installations

All Features

Wire dimension: 4 mm
Overall length: 50 mm
Material: Plastic
Safety anchor: No
Drilling diameter: 8-(10) mm
Min. screw-in depth: 35 mm
Wood screw diameter: 4 - 4.5 mm
Drill hole diameter: 8 - (10) mm
Remote mounting: No
Min. borehole depth: 60 mm
Plug length: 50 mm
Max. screw-in depth: 60 mm
Front mounting: Yes
Implementation: without screw
Pierce fitting: No
Drill diameter: 8 mm
Colour: grey
Metric screw: M4

Brand FISCHER
87990167
EAN 4006209784112
Supplier number FISCHER 78411

Frequently asked questions about this product

Answered by specialists

Which building materials is this anchor designed for?: The Fischer FTP K 4 is designed specifically for aerated concrete and solid gypsum blocks.
What drill hole diameter is required?: You need an 8 mm drill diameter, or up to 10 mm depending on the density of the aerated concrete.
Which screws can you use with this plug?: It is compatible with wood screws (4 to 4.5 mm) as well as metric M4 screws.
How do you install the Fischer FTP K 4?: After pre-drilling, screw the anchor into place using the FTP EK setting tool.
Can you install this plug close to edges?: Yes, its spiral outer thread ensures an expansion-free hold, allowing for small edge and spacing distances.