Specialised screw for window mounting

The CELO window frame screw FBS-Z with socket 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-Z is recommended for installing wooden window frames. FBS is recommended for installation of metal and plastic window frames.

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