The gutter screw enables to replace old popping gutter spikes once and for all. Wider than gutter spikes, they fill old worn spike holes tightly. This heavy-duty fastener gives unmatched holding power even in old spike holes. Oversized thread diameter for better holding strength and watertight fit.No.3 square drive virtually eliminates cam-out during hard-to-reach installations.Durable UV resistant white and brown head paint matches most gutter systems.Thick galvanized base coating guaranteed not to rust or react with aluminum.Includes screws, ferrules and driver bit.Weight capacity 1.25 lb.