Screw electrical connector for used between plates

The invention discloses a screw electrical connector for used between plates. The screw electrical connector comprises a base-plate and at least one elastic contact element. The elastic contact element comprises a plurality of unit screw collars, and a plurality of the unit screw collars are successively connected along a trajectory in an end-to-end mode. Each unit screw collar is surrounded by a linear electrical conductor, and the cross sectional shape of the unit screw collar is elliptical or circular. The linear electrical conductor comprises at least two stranded conductive filament. The base-plate comprises a plate-shaped body and a clamping tongue fixedly connected, and a clamping clearance is formed between the plate-shaped body and the clamping tongue. The elastic contact element is clamped in the clamping clearance so that the side of the elastic contact element is in contact with the plate-shaped body to form an electric connection. The screw electrical connector for used between plates has the advantages of good electrical contact performance, small insertion and extraction force, low temperature rise, high reliability and long service life.