• CE marking

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    CE marking

    Now with updated Declarations of Performance.
    A large selection of our timber connectors are CE certified.

    Find out more

  • Window grating calculator

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    Create your own security.

    Our window grating calculator makes it quick and easy to find dimensions, materials and quantities. Here we go ...


    Start calculating

  • History

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    Innovating since 1852

    Starting off in 1852 as a bolt forge in the heart of the Sauerland region of Germany, the company now has a range of more than 10,000 products.

    See the whole success story here