The fastener D30 is suitable for right-angled connections of profile tubes oft the D30 series. The pre-assembled fastener is clamped from the outside by a socket head screw M6 (AF5). By tightening the fastening screw, a permanent hold is ensured by positive locking on the profile tubes. The tightening torque of the fastening screw is M = 10 Nm. The maximum holding force against displacement is Fz = 500 N. The intended immersion depth of the profile tube in the fastener is 20 mm.