Prime-Line 9056655 Hex Lag Screws, 3/8 In. X 8 In., A307 Grade A Hot Dip Galvanized Steel (10 Pack)

Size: 3/8 inch X 8 inch Heavy duty wood screw with 6 sided hex bolt head Features deep wood screw threads and does not accept a nut Used in applications where standard wood screws cannot support the load (deck building, etc.) Requires pilot hole to be drilled and installs using wrench or socket tool