Just like ZIP439 mentioned , the material between the two brass part of this side post " battery cut off " seems to be made out of teflon . It will act like using a Nylock nut on a bolt .

Anyway . . . I already have intended to use LOCTITEŽ 222 on the thread as an added safety measure . It is a low-strength threadlocker that is ideal for low-strength metals like brass .

When the green handle it unscrewed for a turn or more and the charger is connected to the Battery , their is no way to get any spark at all .

Daniel