Specialised screw for window mounting
The CELO window frame screw FBS with countersunk head is suitable for constraint force free distance mounting. A special thread at the screw tip with reduced diameter reduces the setting torque and therefore allows a longer battery life of your cordless screwdriver. For quick and easy installation of many different window types in a large number of base materials. Both countersunk and socket head have external underheard milling ribs for flush finishing in all common frame materials. FBS is recommended for installation of metal and plastic window frames. FBS-Z is recommended for installing wooden window frames.
