Fischer

The window frame screw FFS by Fischer is a special scarf screw, which is suitable for the dowel-free and economical installation of window frames in solid and hollow building materials. Thanks to the small drill diameter of 6 mm, an efficient working, also in the series assembly, is made possible. For a stress-free and durable attachment ensures the continuous thread, which prevents the pulling of the window frame. The special thread of the flat-head screw reduces the driving forces and thus allows for effortless installation.