1. They are then glued in place, and stapled or screwed down.

2. 24 Example: The birth of a robot A new robot is screwed down on to its workbench.

3. The lower Bedplates being fixed and held down firmly by the bolts, it was necessary that the nuts should be screwed down upon them

4. Capo definition, any of various devices for a guitar, lute, banjo, etc., that when clamped or screwed down across the strings at a given fret will raise each string a corresponding number of half tones