Common gutter spikes eventually work their way out of the fascia, but our oversized, 8" long, gutter screws have a deep thread on the first 4" to secure the gutter for years... maintenance free! Screw's diameter is 1/16" larger than a spike, so you can use existing spike holes. Installs easily in 5" or 6" aluminum or galvanized gutters, using a #3 square drive bit (included). Triple coated carbon steel. Ten screws, each with a 5" ferrule to prevent gutter damage.