Good morning Pantelman
Thank you for your question. Of course, we also supply a matching screw with each side brush. Recently, the screws have been fixed in such a way that they can no longer get lost. If you have any questions or queries, please feel free to contact us by e-mail at service@irobotics.ch or by telephone on +41 62 746 06 74.
Best regards,
Your iRobot Team