Patent ID: 8157603

Claim:
An electrical screw terminal comprising: a metal tunnel through which an elongate passage runs for receiving a connection strip of an electrical apparatus, and having a tapped hole passing through a wall of said tunnel, and a telescopic screw passing through the tapped hole and comprising: at least a first cylindrical section having an external thread complementary with the tapped hole and having an internal thread for cooperating with an external thread of at least a second cylindrical section, an operating head comprising a driving profile for cooperating with an external tool for commanding the telescopic screw, a tightening head for clamping an electrical conductor and the connection strip, wherein the operating head comprises a single driving profile positioned at a first end of said at least second cylindrical section, said driving profile for cooperating with an external tool for driving said at least first and second sections together in rotation via drive means, the tightening head being positioned at a second end of said at least second cylindrical section, and the drive means comprise a deformable flexible means fitted between the at least first section and the at least second section, and able to deform to secure said sections.