GN 287 swivel clamp connector joints are an assembly of two swivel clamp connectors. Since the swivel clamp connectors have an identical swivel width “b,” all bores “d1/d2” can be combined as needed. The clamping bore is machined and designed for construction tubings. In the standard version, the clamping force of the clamp onto the tube is achieved via the socket cap screws and hex nuts with nylon insert.