A lawnmower (1) is described, comprising quick fastening means (9) in two portions (100, 200) to connect a frontal implement (3), a first portion (100) of the quick fastening means (9) is rotatably associated with a front portion (5) of the lawnmower (1) identifying a rotation axis (R), said second portion (200) of the quick fastening means (9) is fixed to the frontal implement (3) of the lawnmower (1), said first portion (100) comprises a lever (125) pivoted with the hinge pivot (20) to a rotating portion (21) of the first portion (100) and a recall spring (450) which keeps a constraint pivot (95) in place in the first position inside a locking notch (19) of the second portion. (Figure 1).