iPhone Screenshots


Quick and easy dimensioning of bolts, made by engineers for engineers.

This app can help you choose the right bolt for specific requirements. Dimensioning based on Eurocode 3 is also possible

What’s New

Version 1.3.1

This app has been updated by Apple to use the latest Apple signing certificate.

To ensure your privacy, PDF creation is now handled on your device only.

App Privacy

The developer, Stefan Merkle Holding GmbH, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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