It is a screw that is mainly used in the installation of metal sheets. It comes with a metal washer and a rubber washer, which prevents water seepage when it is used in the installation of roofing sheets.
Type | Diameter | From | Until |
Self tapping | 12 | 2" | - |
Self tapping | 14 | 1" | 3" |
Self drilling | 14 | 1" | 2" |