5/16 x 7 Square Pan Gutter Screw White (10) . GutterScrew™ enables you to replace old popping gutter spikes once and for all. Over-sized threads are wider than gutter spikes, so they fill old worn spike holes tightly. No water gets into your house. This heavy duty fastener provides unmatched holding power even in old spike holes. Over-sized thread diameter tightly fills the existing spike holes for better holding strength and a watertight fit #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 Free driver bit included American made