Home/Screws/Window Fabrication Screws/Window Screws For Unreinforced UPVC Frames/Countersunk High - Low Thread with Slash Tip Countersunk High – Low Thread with Slash Tip Slash tip CSNK window screw with high / low thread for fitting window hardware to un-reinforced UPVC section. Available sizes: 4.3 x 25mm 4.3 x 30mm 4.3 x 40mm 4.8 x 25mm BZP Plating Category: Window Screws For Unreinforced UPVC Frames Tags: Countersunk with Ribs, Gimlet point, Hi - Lo thread, Slash tip Related products Shallow Pan Head Friction Stay Screw With Serrations- Heavy GuageWindow Screws For Unreinforced UPVC Frames Slash Tip Friction Stay Screw With High-Low ThreadWindow Screws For Unreinforced UPVC Frames Shallow Pan CSNK Head Friction Stay ScrewWindow Screws For Unreinforced UPVC Frames Countersunk Single Thread with RibsWindow Screws For Unreinforced UPVC Frames