SMA-based Ball-holding Separation Nut with Holding Clamp (SBN-HC series) is developed for the launch lock requirement of the space scanning or pointing mechanism (typically for RF or optical communications). A clamp holding mechanism is incorporated into the standard SBN separation nut, and the clamps are able to open after the actuation of the separation nut, which generates a 4~5mm gap between the moving structure on the scanning or pointing mechanism and the separation nut. A travel switch is also integrated into the separation nut to monitor the opening movement of the clamp, simplifying ground operations and flight mission requirements. The SBN-HC series separation nut is only offered a with bottom mount (BM) interface, with a load capacity of 2~20kN.