Grip Fast® #7 x 1/2" Combo Drive Hex Head White Gutter Screw

Gutter screws are sheet metal screws with a sharp thread that draws material together and are primarily used to attach downspouts and elbows together.
Features
Painted head for a decorative appearance and some corrosion resistance.
Self piercing head eliminates the need to pre-drill
Drive size may vary between 1/4" and 5/16"