Tamiya 95415 Stainless Steel Countersunk Screw Set (10/12/20/25/30mm, Black)Flat headed countersunk screws are perfect for use on plate undersides, as they sit flush to the surface without catching on any obstacles. This set includes four 10mm, six 12mm, two 20mm, four 25mm and four 30mm screws, finished in a cool shade of black. Make guide holes using Item 74130 Electric Router Countersink Bit (for 2mm Screws).