Replace your stripped out and worn Keihin FCR-MX carburetor float bowl screws with only genuine Keihin replacements.  An exact Keihin replacement bowl screw ensures perfect fitment and performance over the life of your FCR carburetor.  The float bowl screws are sold in sets of 4 and are 4mm x 12mm with a .70mm thread pitch.  Keihin part #0136-806-1100.