What does it mean to dream about screw?
A screw often points to what holds a thing together or the small fix a situation needs, so notice whether it gripped firm or came loose.
Four ways to read it
Each reading below comes from a named tradition and a cited source, so you can see where it came from and decide what fits your dream.
Freud
Freud would read the act of driving a screw home as carrying an obvious bodily and sexual overtone of joining and fixing. The image can stand for the wish to make something hold fast.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung might see the screw as the small but vital piece that keeps a structure sound, the detail on which the whole depends. A loose screw can mark a part of you working free of its place.
Jungian concept (our summary).Modern
Continuity ties a screw to waking thoughts about holding things together, small repairs, and what keeps your plans secure. A loose or stripped screw often echoes a real sense that something is not holding.
Continuity hypothesis (our summary).Mythological
The joining of parts into a sound whole sits within the lore of the craftsman, whose well-made work held against time and strain. The smallest fastening could decide whether the great thing stood or fell.
Rosmerta Publishing editorial synthesis (after Bulfinch; Brewer).