Detailed Product Description galvanized roofing nail with neoprene washer2) Finish: electric galvanized, hot dipped galvanized, brihgt, flat head, diamondpoint 3) Specifications: 1''-4'', BWG10-BWG94) For steel roofing and other flat roofing materials 5) Neoprene washer provides an effective waterproof seaBulk, box, bag, or according to customers' requests.