10-9 x 1 1/2 Phillips Pan Deep Thread Wood Screw 2/3 Thread Black Oxide and Oil NWR72 and the indented hex design

and the indented hex design provides a secure grip

They are designed with a flat undercut head and a Phillips drive

it features a full thread that provides maximum holding power

With a length of 6 1/2 inches and a diameter of 5/16 inches

3HD outside diameter

10-9 x 1 1/2 Phillips Pan Deep Thread Wood Screw 2/3 Thread Black Oxide and Oil NWR72 and the indented hex design10 9 x 1 1 2 Phillips Pan Deep Thread Wood Screw 2 3 Thread Black Oxide and Oil: Length: 1 1 2 inches Diameter: 10 9 Thread Type: Deep Thread Thread Length: 2 3 Drive Type: Phillips Pan Finish: Black Oxide and Oil These screws are designed for use in wood applications. They have a deep thread that provides a strong hold, and a 2 3 thread length that allows for easy installation. The black oxide and oil finish provides corrosion resistance.