The present disclosure relates to an implement fastening means (9), for detachably fastening an implement in front of an implement carrier in the driving direction thereof. The fastening means has a flat bar end (15) with a hook portion (17). A locking indentation (19) is provided in the upper edge of the bar, and has a cam surface (45) adjoining the upper edge of the bar at the side of the locking indentation being closest to said end of the bar, a shoulder portion (49), following the cam surface, where the distance between the centre of the hook and the cam surface peaks and a sub-indentation (53), following the shoulder portion, the sub-indentation having an upper edge (55) being directed towards the centre of the hook (17). A locking pin in a mating part can slide into the sub-indentation as the implement is fastened.