These Phillips flat head zinc-plated coarse wood screws are a #6 x 1-1/2 in. size, supplied as a pack of 12. Wood screws are designed for wood applications and are specifically used to join two pieces of wood. The smooth shank allows the screw to pull two pieces of wood together for a tight join, while preventing the wood from pulling or splitting. The standard point on these screws requires a pilot hole for installation.