Forgefix TFHW16GP6360 Techfast Metal Roofing To Timber Hex Screw T17 Gash Poi...
No pre-drilling is required and the self-drilling T17 Gash Point on screws makes for a rapid installation. Head Type: 8mm Hex. They are supplied with 16mm EPDM rubber washers. Steel Thickness: 0.5-1.2mm.