Company is looking for a long term cooperation supplier for Roofing Screw with Painted Head in different Hexagon head colors (Roof and sidewall panels screw) SEE PICTURE IN ATTACHMENT sizes For sheet on Wood: M4.8 x (19-75) for steel sheet: M5.5 x (19-75) Color codes : 3005 6005 7024 8017 9002 5005 Please let us know about the prices, colors and sizes which you could produce.