The Best Gutter Screw on the Market with Ruspert Coating. One of our hottest selling products is our #12 X 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.
Ruspert coating is a new processing of metal surface treatment. It provides high performance of corrosion resistance. The coating includes 3 layers. Base coating is metallic zinc layer, then the second chemical conversion film layer, finally a baked ceramic surface coating
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