Window frame screws (concrete screws) are for the installation of windows and door frames made of PVC-U, wood or aluminum, as well as frame couplings and brackets.

Window frame screws (concrete screws) tap directly into brick work, doing without the need for plugs or nylon anchors. They provide a secure fixing into a wide range of materials since they are suitable for concrete, solid re brick hollow, blocks, natural stone, etc.

Window frame screws (concrete screws) make virtually stress free, allowing close to edge applications. With torx head screw, window frame screws can increase torque control;

Window frame screws flat head torx 30 and window frame screws flat head torx 25 are two types of screws we are supply.