Reduction head. All screw variants are also available as long head screws (reduction screws).
Slim and flat head design. A very firm connection to the instrument allows easy insertion of the screw.
Lateral stiffness. This provides for controlled connection of the other system components. The unipolar angulation is 52°.
4.95 mm screw neck diameter. Lends the screw the necessary stability.
Quatro flanks. The proximal shaft section increases bone anchorage in the pedicle.
Double-lead thread. The 5 mm thread pitch facilitates rapid insertion, because the pitch of the thread is larger than in single leads threads, so per revolution the insertion depth is about twice of a single lead thread.
Cannulated and fenestrated shaft. Allows reliable application of bone cement. All screw variants are available with a solid shaft design.
Self-tapping screw tip. The distal cut on the shaft provides good initial grip and supports screw insertion.