A connecting element for a mechanical joint, the connecting element comprising: - a base part having a first end and a second end and a front surface extending between the first end and the second end, and - a connector part protruding from the base part, the connector part comprising: - a protrusion portion arranged to protrude from the front surface of the base part, and - a contacting portion extending from the protrusion portion to a direction of the first end of the base part to form a gap between the contacting portion and the front surface of the base part and to form a bottom of the gap by the protrusion portion, the contacting portion having a front surface which is parallel to the portion of the front surface of the base part in the area of the gap and a back surface facing toward the front surface of the base part, a distance between the back surface of the contacting portion and the front surface of the base part is decreasing towards the bottom of the gap, the contacting portion further having an end surface between the front surface and the back surface and extending from the front surface to the back surface, the base part having a back surface extending between the first end and the second end opposite to the front surface and a first and second side surface (25, 26) extending between the front surface and the back surface between the first end and the second end, the connecting element further comprising a stopping element (8, 80) providing a stopping surface, said stopping surface is arranged to extend transverse to the front surface of the base part and outside of the front surface of the base part, characterized in that the stopping element (8, 80) is arranged as an integral stopping element to the connecting element such that the integral stopping element is provided to at least one of the first and second side surface (25, 26); or the stopping element (8, 80) is arranged as an integral stopping element to the connecting element such that the integral stopping element is provided to the first end of the base part and/or the second end of the base part. - a base part having a first end and a second end and a front surface extending between the first end and the second end, and - a connector part protruding from the base part, the connector part comprising: - a protrusion portion arranged to protrude from the front surface of the base part, and - a contacting portion extending from the protrusion portion to a direction of the first end of the base part to form a gap between the contacting portion and the front surface of the base part and to form a bottom of the gap by the protrusion portion, the contacting portion having a front surface which is parallel to the portion of the front surface of the base part in the area of the gap and a back surface facing toward the front surface of the base part, a distance between the back surface of the contacting portion and the front surface of the base part is decreasing towards the bottom of the gap, the contacting portion further having an end surface between the front surface and the back surface and extending from the front surface to the back surface, the base part having a back surface extending between the first end and the second end opposite to the front surface and a first and second side surface (25, 26) extending between the front surface and the back surface between the first end and the second end, the connecting element further comprising a stopping element (8, 80) providing a stopping surface, said stopping surface is arranged to extend transverse to the front surface of the base part and outside of the front surface of the base part, characterized in that the stopping element (8, 80) is arranged as an integral stopping element to the connecting element such that the integral stopping element is provided to at least one of the first and second side surface (25, 26); or the stopping element (8, 80) is arranged as an integral stopping element to the connecting element such that the integral stopping element is provided to the first end of the base part and/or the second end of the base part.