Connecting element for sheet piles

A connecting element for two sheet piles connected at an angle, comprising first and second hook strips, wherein the first hook strip is shaped as a knob section consisting of a head and a substantially straight neck connected to a top of the second hook strip and wherein the second hook strip is shaped as a first C-shaped claw with a jaw located at approximately half the height of the claw so that an approximately oval-shaped interior space is formed, the improvement wherein the first hook strip includes the head facing away from the neck to engage with a claw of a knob-and-claw sheet pile, wherein an approximately rectangular channel is located between the head and the neck, wherein two members of the first C-shaped claw forming the jaw are straight and aligned, so that the two members point toward each other, wherein the jaw of the first C-shaped claw has a width that is smaller than ⅓of the height of the claw, wherein the channel in the first hook strip faces the opposite direction from the jaw of the first C-shaped claw, and wherein the interior space and the jaw width are so dimensioned to engage different hook strips of the sheet piles to be connected and the connected sheet pile can be moved through a wide angle in the interior space of the first C-shaped claw while preventing disengagement of the hook strip at any angle.