Bracket connection device, particularly for fastening components in an engine compartment

A bracket connection device (1), particularly for fastening a component to the body in an engine compartment, has a bracket (5), which is defined by a plate element, is elongated along a longitudinal direction (6), and is provided with an end portion (8) having a seat (11) engaged by an elastically deformable collar (15); the bracket (5) is further provided with an arm (10), which extends so as to protrude from the end portion (8) and has a plurality of holes (18) made in positions spaced apart from each other along the longitudinal direction (6).