Device (1; 101) for fastening two components together, which has the following: a base portion (10; 110); a first clamping portion (11; 111); a second clamping portion (12; 112); and at least one force application element; wherein the first clamping portion (11; 111) is provided on one side of the base portion (10; 110) and is suitable for clamping a first component between itself and the base portion, the second clamping portion (12; 112) is provided on the other side of the base portion (10; 110), which is provided on the opposite side from the one side, and is suitable for clamping a second component between itself and the base portion, the force application element extends from the first clamping portion (11; 111), through the base portion (10; 110), to the second clamping portion (11; 111) and is capable of generating a force by way of which the first and the second clamping portion are moved towards one another, and the force application element does not project beyond one of the outer faces of the first or second clamping portion, which is on the opposite side from the face of the first or second clamping portion that faces the base portion (10; 110), characterized in that, on the side that faces the base portion (10; 110), the first clamping portion (11; 111) has protrusions (11V; 111V) projecting towards the base portion at the edges provided in the transverse direction, and, on the side that faces the first clamping portion (11; 111), the base portion (10; 110) has protrusions (10V; 110V) projecting towards the first clamping portion (11; 111) at the edges provided in the transverse direction, wherein protrusions (11V; 111V) of the first clamping portion (11, 111) are offset in the transverse direction of the device with respect to protrusions (10V; 110V) of the base portion (10; 110). a base portion (10; 110); a first clamping portion (11; 111); a second clamping portion (12; 112); and at least one force application element; wherein the first clamping portion (11; 111) is provided on one side of the base portion (10; 110) and is suitable for clamping a first component between itself and the base portion, the second clamping portion (12; 112) is provided on the other side of the base portion (10; 110), which is provided on the opposite side from the one side, and is suitable for clamping a second component between itself and the base portion, the force application element extends from the first clamping portion (11; 111), through the base portion (10; 110), to the second clamping portion (11; 111) and is capable of generating a force by way of which the first and the second clamping portion are moved towards one another, and the force application element does not project beyond one of the outer faces of the first or second clamping portion, which is on the opposite side from the face of the first or second clamping portion that faces the base portion (10; 110), characterized in that, on the side that faces the base portion (10; 110), the first clamping portion (11; 111) has protrusions (11V; 111V) projecting towards the base portion at the edges provided in the transverse direction, and, on the side that faces the first clamping portion (11; 111), the base portion (10; 110) has protrusions (10V; 110V) projecting towards the first clamping portion (11; 111) at the edges provided in the transverse direction, wherein protrusions (11V; 111V) of the first clamping portion (11, 111) are offset in the transverse direction of the device with respect to protrusions (10V; 110V) of the base portion (10; 110).