This Van der Valk hanger bolt clamp with the Van der Valk product number 721100 must be used together with a suspension bolt to attach the bolt to the aluminum profile.

Watch the assembly videos to understand this:

Click here to watch all installation videos for a better understanding of the Van Der Valk mounting systems and find the right system for your roof type.

You can also use the Van Der Valk planning tool to calculate your required components and you can view the installation instructions in the download section.

You can also consult our solar guide on common questions such as:

1. costs and income - Are solar installations in Switzerland worthwhile?

2. subsidies - Will my system be subsidized by the state?

3. steps to the solar system - Which individual points do I need to tick off?

And many more.