These zinc chromate wood screws are a #10 x 3 in. size with a Phillips flat head, supplied as a pack of 4. They are designed to join two pieces of wood, and the smooth shank allows the screw to pull the pieces together for a tight join while preventing the wood from pulling or splitting. A pilot hole is required for installation. Use them for wood projects around the home such as cabinet, patio or framing assemblies. The screws are tapered along the threading to optimize holding power. The flat head and smooth portion of the shank allow flush placement against the surface.