Window frame screws FFS with flat Torx head

The window frame screw is a special screw with self-tapping thread and a flat head with Torx socket. The continuous thread allows stress-free installation of frames, windows and doors. Allows fast installation due to the narrow hole diameter of 6mm and the fact that the screw can be tightened without having to clean out the hole first. There is no need to use a plug.

Fixing door and window frames to concrete and masonry