Products / Grip-Rite Roofing Nail with Neoprene Washer

Grip-Rite's hot-dipped galvanized ring-shank roofing nail with a neoprene washer, for installing metal or fiberglass roofing panels; the washer flattens against the substrate on driving to form a water-resistant seal, and the flat head is checkered against hammer slip. The product page lists a 1 3/4 inch, 10 gauge nail with a 3/8 inch flat head in a 1 lb box, and says it "Metts or exceeds ASTM A-153 requirement for use in treated lumber".