Our thick square pyramid head screw is a unique decorative aspect compatible with all our hardware and hinge straps. These screws are a great alternative to our decorative nail heads being that you can screw them in place for functioning hardware pieces. These look like the true old wrought iron screws to provide an old world look for your doors, cabinets, gates and hardware. The image with 9 finishes shows (left to Right Top to bottom): Oil Rubbed Bronze, Black, Gun Metal, Rust, Gold, Pewter, Oxidized Copper, Aged Bronze. Our #18 has a head size of 1/2"