The FEIN 33024069010 Blade Clamp Countersunk Screw is a genuine replacement fastening component for selected FEIN FMM250 and FMT250 MultiMaster oscillating multi tools. It is used within the accessory clamping assembly to secure the fitted blade or accessory correctly and is suitable for replacing an original screw that has become worn, damaged or stripped. The same part is used across compatible MM500 and MM300 machine variants, so the complete FEIN machine number should always be checked before ordering.