A device (1) for mutually fixing a longitudinal carrier (3) to a bone fixationelement (4), wherein the device consists of a three-dimensional body (5) whichhas achannel (6) that is open on one side, wherein the axis of the channel (7)receives thelongitudinal carrier (3), and a bore hole (8) that extends crosswise inrelation to the axisof the channel (7) through the body (5) and that is provided with a wall (10).At least onepart of the bore wall (10) disposed between the channel (6) and the bore hole(8) isembodied as an elastic element (11) which can be pressed into the region ofthechannel (6) by introducing the bone fixation element (4) into the bore hole(8), such thata longitudinal carrier (3) arranged in the channel can be firmly clamped in arotationaland longitudinal manner by said elastic element (11).
