These include a tape measure, straight-cut aviation metal snips, plumb bob or 4-ft ... fasten the track to the underlying joists with 1-1/2 in. self-tapping drywall screws. If the track runs parallel ...

Sheet metal screws are known as self-tapping fasteners because they cut their own threads into the material (aluminum or plastic), and you don’t need to use a separate tool (called a tap ...