OSCO can supply a variety of Extruded Heat Sink Profiles for PCB Level Semiconductors. These profiles are either for screw-on mounting, have a counter-sunk mounting area or are suitable for clip mounting with clip types: MC725, MC726, MC773, MC797.
The finishing including length, milling and surface refinement (untreated aluminium, anodised black, anodised colourless and chromate colourless) is to your specification.