#$%^&*AU2017203248A120171221.pdf#####ABSTRACT The object of the present invention is a mower with a cutter bar comprising an elongated hollow casing (3), at least one bearing block (4) mounted at the level of an orifice of the upper wall (3') of the casing (3), at least one disk (8) integral with a support shaft (9) mounted in the said bearing block (4), at least one cutter (10) fixed with the ability to rotate freely on the said disk (8), wherein each bearing block (4) is made integral with the casing (3) by at least one fastener assembly composed of at least two fastening elements (6' and 6") assembled mutually by screwing. The mower is characterized in that, for each fastener assembly, at least part of the zone or zones (11) of engagement of the respectively female-threaded (7') and male-threaded (7) parts of the fastening elements (6' and 6") is situated between the respective mutually opposite bracing surfaces of the said fastening elements (6' and 6"). Thus the fastening elements (6', 6") are less protruding and their connection zones are not subjected to the aggressions of the outside environment.4/6 CY CY - - - - - - - - -c