Safety clamping bar for sliding windows with a width of 1000mm. Clamping range 440-500mm. The construction is clamped between the fixed pane and the window handle. This prevents the window from being forced open from the outside. To open the window, the clamping bar can simply be released. For mounting (see PDF), a suitable adapter for the respective window type is required in addition to the safety clamp rod (basic element). The length of the basic element is determined by the window width. For this, the distance from the fixed pane to the window handle is determined.