Parker Tools and Fixings Kee Klamp Angle Base Flange is similar to a Type 63, it is used to set the upright at an angle between 11 degrees to 30 degrees. This fitting should only be subjected to light loads, which cannot be positioned at 90 degrees to the applied load. For greater loads or other tube sizes a Type 62 flange should be used with the upright bent to the required angle.