Home/Screws/Window Fabrication Screws/Window Screws For Reinforced UPVC Frames/CSNK Head Self Drill Screw - Heavy Gauge CSNK Head Self Drill Screw – Heavy Gauge CSNK heavy gauge self drill screw with self tapping thread. For use where a heavier gauge screw is required. Available sizes: 4.8 x 25mm 4.8 x 32mm 4.8 x 38mm 4.8 x 45mm 4.8 x 60mm BZP Plating Category: Window Screws For Reinforced UPVC Frames Tags: heavy guage window screw, self drill window screws, UPVC window screws Related products Pan Head Self Drill ScrewWindow Screws For Reinforced UPVC Frames CSNK Metric Thread Self Drill ScrewWindow Screws For Reinforced UPVC Frames Self Drill Friction Stay ScrewWindow Screws For Reinforced UPVC Frames Cill ScrewsOther Window Screws