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 Slash Tip Friction Stay Screw With High-Low ThreadWindow Screws For Unreinforced UPVC Frames Countersunk Single Thread with RibsWindow Screws For Unreinforced UPVC Frames Shallow Pan CSNK Head Friction Stay ScrewWindow Screws For Unreinforced UPVC Frames Shallow Pan Head Friction Stay Screw With Serrations- Heavy GuageWindow Screws For Unreinforced UPVC Frames