Quicker to fit with stronger hold Yellow galvanised steel 3.9mm x 38mm selfdrilling screw with selftapping thread and countersunk head. A favourite of the window industry this screw is perfect for fixing uPVC plastic profiles to metal framework. Selfdrilling screws like these Wurth FEBOS SCRDBITCUTHDPH2A2C39X38 020703938 require no predrilled pilot holes so installation is quicker and tidier. Being zinc plated steel means that these screws offer great protection against corrosions. Selfdrilling tip cuts through hard material Selftapping thread cuts own tight fit thread Zinc plated yellow protection against corrosion Demagnetised safe near electrical component Small packs available reduce over buying Pack Contents These Wurth FEBOS galvanised steel 3.9mm x 38mm selfdrilling screws are supplied in packs of 50 100 or as a box of 500 screws. Technical Information Measurement Value Material Steel Surface Zinc plated yellow Nominal Diameter ...