Qualihome Pan head Phillips Drive Sheet Metal Screws Assortment Kit, 140 Pieces A large assortment 9 of the most-used sizes is provided to suit your needs, Ideal for home, office, work, garage, business & industrial applications These sheet metal screws / tapping screws, are highly versatile and are used to attached metal, wood, fiberglass, and plastic Made from hardened steel, the threads create their own mating thread in pre-drilled holes Sheet metal screws are fully threaded with a sharp point Comes in a handy Plastic organized case with size compartments for easy storage