Coating Solutions for maximum longevity
Our coating solutions last – even when
things get tough.
Screw coatings are crucial for the durability and reliability of fasteners – especially in demanding environments.
TOGE concrete screws are not only strong in their anchoring, but also optimally protected against corrosion – thanks to modern zinc flake coatings. We offer a graduated portfolio of high-quality coatings that provide optimum protection against corrosion and are suitable for a wide range of applications. With the TOGE ZFC, TOGE ZFC Solid and TOGE KORR variants, we offer coordinated solutions for different environmental conditions.
Here you will find a compact overview of the properties and advantages of our four materials and main coatings:
- Steel, galvanized – our standard for dry indoor areas (C1).
- TOGE ZFC – our basic coating for applications in corrosive indoor areas (C3-medium).
- TOGE ZFC Solid – ideal for increased requirements in humid or industrial atmospheres (C4-high).
- TOGE KORR – our high-end protection with an impressive protection period of up to 50 years – for projects where long-term reliability is required.
The classification into corrosivity categories is based on extensive tests. This gives you a reliable assessment of the duration of protection under real operating conditions – and a good feeling for every decision.
TOGE – The Fastening Experts. Trust in intelligent solutions with proven quality.
Our coatings in accordance with DIN EN ISO 12944:
Steel, galvanized
| Min. layer thickness | 5 μm |
| Salt spray test according to DIN EN ISO 9227-NSS | 0 hrs. |
| Condensation of water according to DIN EN ISO 6270 | 0 hrs. |
| Corrosion class according to DIN EN ISO 12944 | C1 |
| Duration of protection* | 0 years |
TOGE ZFC
| Min. layer thickness | 6 μm |
| Salt spray test according to DIN EN ISO 9227-NSS | 240 hrs. |
| Condensation of water according to DIN EN ISO 6270 | 120 hrs. |
| Corrosion class according to DIN EN ISO 12944 | C3 – medium |
| Duration of protection* | 7-15 years |
TOGE ZFC Solid
| Min. layer thickness | 17 μm |
| Salt spray test according to DIN EN ISO 9227-NSS | 720 hrs. |
| Condensation of water according to DIN EN ISO 6270 | 480 hrs. |
| Corrosion class according to DIN EN ISO 12944 | C4 – high |
| Duration of protection* | 15-25 years |
TOGE KORR
| Min. layer thickness | 27 μm |
| Salt spray test according to DIN EN ISO 9227-NSS | 4.800 hrs. |
| Condensation of water according to DIN EN ISO 6270 | / |
| Corrosion class according to DIN EN ISO 12944 | C5 ** |
| Duration of protection* |
50 ** years |
* The protection period does not constitute a warranty and is to be understood as the expected service life until the first repair. The component must therefore be accessible and inspectable over the entire period.
** Not according to DIN EN ISO 12944, but according to own test report.
Typical areas of application:
Corrosion class C1:
Heated buildings with a neutral atmosphere.
Corrosion class C3:
Urban and industrial atmosphere with moderate sulphur dioxide pollution.
Corrosion class C4:
Industrial atmosphere and coastal atmosphere with moderate salt exposure.
Corrosion class C5:
Industrial areas with high humidity and aggressive atmosphere. Coastal atmosphere with high salt contamination.
Durable and reliable: Concrete screws from TOGE
FAQs – Frequently asked questions
- For which products are the different coatings available?
- What does the protection period mean for the coatings?
- What needs to be taken into account during installation?
- In our standard range, the TSM High Performance is available with a hexagon head in the coatings galvanized steel, TOGE ZFC and TOGE ZFC SOLID (TOGE KORR on request).
Other screws can also be offered on request. Just get in touch with us!
- The protection period represents the expected service life of the coating until the first repair and is not to be understood as a guarantee. It is therefore important that the component and the screws are accessible for the entire duration so that regular inspections can be carried out.
- Especially when installing outdoors in the ground, the drill hole must be sealed with a suitable mortar or protective measures to protect the screw in the drill hole from water ingress. The coating in the thread area is attacked by the screwing process in the concrete, which is why corrosion protection is reduced without appropriate protection.
