The clamping bore axes of the two-way connector clamps GN 132.9 are arranged at an angle of 90° to each other. They hold typical construction tubes with full surface contact over the entire cross-section of the bore. At the screw locations z, the socket cap screws reduce the bore cross-section for clamping. Adapter bushings GN 290 can be used to reduce the bore cross-sections to a smaller diameter. For clamping without tools, the socket cap screws can be replaced by the adjustable hand levers GN 911.9 listed in the table as accessories. The plastic used in version V is made from blue, visually detectable and FDA-compliant plastic granulate as per FDA CFR.21 and EU 10/2011.