1" Bore 90° Clamping Mount

Create a 90 degree joint between two 1" tubes using this clamping mount.  The 6-32 pinch bolts will constrict the aluminum around the tube that is inserted for a tight hold while leaving the bore of the tube unobstructed so that wires can be routed through for a clean build.  Alternatively, you can clamp a hub spacer (or any 1" OD component) into one side to fasten channel and other pattern-based components to the side of a 1" tube.