Base clamps BS of die-cast aluminum have a slitted clamping point machined by cutting methods.
The base flange with four bores serves as an interface or for fastening the clamp to the place of use.
The bore at the clamping point is arranged perpendicular to the face of the flange. It receives typically available construction tubes with full surface contact over the entire cross-section of the bore.
At the screw point, a hex socket cap screw reduces the bore cross-section for clamping.