During manufacturing of universal twinbar 670 Qrh, the wrong center bolt was used for some twinbars. The wrong bolt does, under some circumstances, prevent a rotation of the twinbar around its center bolt. When the rotation around the bolt is inhibited, a momentum is transferred to the attachment between the twinbar and the lift. This has caused breakage in the field resulting in patient falls. To date, there have been no reported injuries. Recall start date: Feb 25. 2022