OVERVIEW: The 15-degree wire coil, full round head, ring shank roofing nail is ideal for asphalt and synthetic slate roofing. KEY FEATURES: Ideal for asphalt and synthetic slate roofing Large flat head, diamond point for easier driving Annular ring shank increases withdrawal resistance to provide a secure attachment to OSB or plywood roof decks Choose Type 316 stainless steel for seaside applications and superior corrosion resistance