100 Count-PREMIUM Muzzys Self-Tapping: Slotted BLACK Painted Hex Head #8 x 1/2 Inch Long Rain Gutter Downspout Sheet Metal Screws. BLACK Painted Head: The BLACK painted head blends in with surrounding hardware, such as gutter, downspouts, Vinyl Fencing, ETC...Superior Anti-Corrosion Coating: Made of durable zinc plated carbon steel, these self piercing sheet metal screws offer excellent rust & corrosion resistance for indoor/outdoor use. Self-Tapping Sharp Point: The sharp self-tapping point easily cuts through metal sheets, aluminum, and plastic. Skip the pre-drilling and get your project done in half the time. Hex washer-head screws tap their own mating threads and penetrate metal, wood, fiberglass, and plastic without the need for pre-drilling. 1/4" Drill Bit Driver INCLUDED for easy screw installation.