The Screw Jack Assembly
Two parts are required; the Screw and the Body.
These can be assembled together with the overall height of 47mm (distance mate) for ease of assembly when this is used at the top level. 47mm is the height of the V Block.
The models are relatively simple, revolves and extrudes with use of hole wizard and cosmetic threads.
The chamfer on the hex headed screw is produced with the revolve cut feature.
The assembly image shown might be easier to visualise if it were coloured differently. Make the two bodies a different colour at the part level.
The Table is a simple extrude - one feature should be used if possible. Remember the sketch mirror if this helps; the mirror will help hold symmetry and reduce the amount of dimensioning required.