Connection technology - Screw
Corrosion protection. With certainty.

Coating solutions tailored to your application.

Corrosion protection. With certainty.

Coating solutions tailored to your application.

Surface coatings for fasteners

Corrosion can significantly hamper the functionality of a screw connection by weakening the material. Not only does this cause high maintenance costs, but also jeopardises the safety and durability of your construction. Targeted corrosion protection is therefore essential to ensure reliability and endurance of screw connections.

 

Systematic corrosion protection. Our catalogue programme for surface coatings

Galvanised

- Basic corrosion protection

- Very good availability

- Up to property class 10.9

Galvanised and thick-film passivated

- Medium corrosion protection

- Good availability

- Up to property class 10.9

- With a defined friction coefficient

Galvanic zinc-nickel

- Very high corrosion protection

- Medium availability

- Up to property class 10.9

- With a defined friction coefficient

Galvanised zinc-nickel black

- Very high corrosion protection

- Medium availability

- Up to property class 10.9

- With a defined friction coefficient

Zinc flake

- Very high corrosion protection

- Good availability

- Up to property class 12.9

- With a defined friction coefficient

Hot-dip galvanised

- Very high corrosion protection

- High coating thickness, not suitable for small dimensions

- Up to property class 10.9

- Low availability

Mechanically galvanised

- Basic corrosion protection

- Commonly used for spring-loaded parts, e.g. lock washers

Everything at
a glance.

How to find the right corrosion protection for your application

Selection of the suitable corrosion protection depends on various factors.

  • Which corrosion-protection properties are required?
  • What is the fastener exposed to while in operation?

  • What is the property class or hardness of the fastener?

  • e.g. drive size, thickness, thread pitch, weight, length ratio, diameter, etc.

  • Is a set friction coefficient range required?
  • How is the fastener fitted and handled?

  • Can contact corrosion occur due to the pairing of unsuitable materials?

  • Which statutory provisions and industry or customer-specific guidelines need to fulfilled?

  • Is the component in the visible area?

  • Availability, (minimum) quantity, price level?

Optimum corrosion protection


Could not find a suitable surface coating?

Owing to our wide network of coating providers and manufacturers, we can offer you other, special surface coating solutions tailored to your application.

Please do not hesitate to contact us!