Hillman Spiral Shank Deck Nails are used for construction and repair of decks. Spiral twist provides greater holding power. Increased holding power means a smaller diameter nail which reduces chances of splitting wood. For exterior use and with all treated lumber. Galvanized finish resists rust and weathering. Size: 10D Length: 3 Finish: Galvanized Shank: Spiral Spiral twist provides greater holding power For patio and deck construction Use for construction and repair of decks. 1 lb package. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov