Which type of screw/bolt for solar panel installation
May 27, 2021
Where does the confusion between terms come in? In many cases, the person specifying a this type of screw will interchange the terms self-tapping screw (or “Self-Tapper”) with self-drilling screw, but a screw is only a self-drilling screw when it will drill its own hole.Self-tapping screw in solar mounting system,either in L foot, tile hook or trapezoidal roof hook, there is the self-tapping screw...