The Best Gutter Screw on the Market with Ruspert Coating One of our hottest selling products is our #12 X 1-1/2" High Low Thread Heavy Duty Gutter Screw with a #17 Point self piercing screws which have 1/4" heads that are 28% taller than the standard. They also have a #12 washer under the head instead of the standard #8 washer. This helps to ensure that the screws dont slip out of the drivers, better tool engagement and increased tool life.
Ruspert coating is a new processing of metal surface treatment. It provide high performance of corrosion resistance. The coating including 3 layers. Base coating is metallic zinc layer, then the second chemical conversion film layer, finally a baked ceramic surface coating